Showing posts with label swivel gun. Show all posts
Showing posts with label swivel gun. Show all posts

Monday, February 29, 2016

3/1/16 Report - A Story About The Difficulty of Interpreting The Source And Date of A Lost Item. When Location Isn't Enough.


Written by the TreasureGuide for the exclusive use of treasurebeachesreport.blogspot.com.

This isn't just one more post about swivel guns.  It is about more than that.

Lets start with an article about "a" swivel gun.  The article I'm talking about is an online article about a swivel gun found between the Margarita and Atocha wreck sites.  The article is actually a reprint written by Corey Malcom that was originally printed in The Navigator: Newsletter of the Mel Fisher Maritime Heritage Society, Vol.11, No.4, April, 1997.

One paragraph of that article says, Other than its location upon discovery, there is no evidence to support the theory that this swivel gun is a part of the scattered wreckage from either of the Atocha or Santa Margarita. Rather, it seems clear that this cannon represents the first attempt by a quick thinking survivor of the tragedy to mark the location of the sunken galleons for later salvage. Unfortunately, subsequent storms quickly followed and carried away the buoy that this gun anchored, not only leaving it lost at the bottom of the sea, but further destroying what remained of both the Atocha and Margarita. For another 364 years this piece had to lay quietly where it had been dropped before finally being able to reveal its tortuous journey from the 16th to 20th centuries. 

Sometimes we think that because an item is found close to or in a similar circumstance to another item it must be from the same time period or same source.  That can be the case, but it isn't always the case - especially when the location is a beach or in the water.

As I've mentioned in the past, the beach is a turbulent place.  Sand comes ago - time and time again.   There are two tidal cycles almost twice a day.  Things get churned up.  That is why there is no remaining context, as the archaeologists like to say.  Things get scattered an intermixed from different times and sources.

It is true that if you find one item from a time period, the probability is greater that you will find another from a similar time period.  There are times when you are not likely to find anything old at a particular beach location and the presence of one "older" item greatly increases the probability of another.  Same thing for source.  However, it is also true that you can find a good bunch of 20th century objects and still find an earlier item in the group.  The greater the number items found, the better the chances are of finding something even older in the mix.

You can find old items on a beach that were lost only yesterday.  Don't forget that old items are still being carried around - maybe infrequently, but it does happen.  An 18th Century gold coin, could have been dropped just yesterday.  Old things are still being lost today.

I've seen 1715 Fleet gold coins that were found on a beach that were originally found decades ago by modern salvors, were mounted in a ring or pendant, and then lost again.

If you hunt in a place like south Florida, you might find a good number of old gold coins mounted in jewelry.  But of course, they don't have to be mounted in jewelry.

There are still old coins in circulation.  And occasionally little Johnnie takes an item from daddies collection and loses it.  Point being that not all old items were lost long ago.

That was particularly true in older days.  As you'll see from many undisturbed archaeological sites where the context has not been disturbed, people in older times kept things longer.  They repaired things over and over and continued to use them for decades or centuries.  The modern home in 1700, might contain a lot of items from much earlier periods.  It wasn't like they furnished the home exclusively with items that were purchased within the last three years.   Things were made to last longer, and on the average they were used much longer than the stuff we buy and use today.  The age range of items from an old site is often much broader than from a more modern site.

The fact is that dating an item can be particularly difficult for older items because of the broad range of items kept in use in older days, and new and old items can be mixed together, particularly on the beach or in shallow water.

When old coins are being found they can be from different decades or even centuries.  When you are getting to the old stuff, the possibility of finding even older stuff increases, but you can't be sure that things are from the same source just because they are found together.

As much as they like to talk about shipwreck sites as being a time capsule, it is not unusual to see beer cans, sinkers, etc. on an 18th century shipwreck.  There might still be a high degree of clustering, but items from different ages and sources can get mixed together.

That is one thing the article about this swivel gun illustrates.  It is thought that it was not lost with the Atocha or Margarita, but was used to anchor a buoy to mark the shipwrecks.

There is a tendency to accept the simplest explanation as the most correct, but often the story of an artifact is both more interesting and complex than the simplest or "most obvious" interpretation.

This paper reveals the interesting story behind a swivel gun.  Good historical research can help to reveal a lot about an artifact.  Still the apparent answer might not be right.  There is still an element of uncertainty and mystery.  What is the real story?  We'll probably never know for certain.  And maybe that is part of the fun and fascination of an old artifact.

Here is the link to the article.  Enjoy!

http://www.melfisher.org/pdf/The%20_1622_Swivel_Gun.pdf

And here is an illustration of that particular gun from that article.


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I spent all of yesterday in the hospital trying to help someone and haven't been out to the beach much lately for a variety of reasons.  Just goes to show what is really important.

Make the best of the good days.  Be kind and helpful.

Happy hunting,
TreasureGuide@comcast.net.

Sunday, February 28, 2016

2/28/16 Report - More On Ship Artillery Including Swivel Guns and Others.


Written by the TreasureGuide for the exclusive use of treasurebeachesreport.blogspot.com.

Source: http://www.americanrevolution.org/artillery.php
I am far from arriving at a conclusion about the item shown yesterday, but in the process of doing a little research have found a lot of interesting information that I want to post.

The item I showed yesterday seems from the photos to me to be close to the size of a swivel gun. Swivel guns were varied in size and shape, but you can see one example above.


The swivel gun was a small cannon named for it's mechanism of attachment. It was about the only 18th century gun that was not a "crew-served" weapon, although it's effectiveness was multiplied when manned by more than the gunner. Once mounted, almost always on a fixed base (as the block of wood shown) it may be pointed quickly to any quarter. But the swivel mechanism cannot stand heavy recoil, so the size, and hence effectiveness, of a swivel gun is severely limited.

Cannon calibers became relatively standardized during the 1600s based on the weight of the ball projectile used in the gun. The smallest standard cannon was the two-pounder, and the largest was the fifty-pounder.

That text and image is from http://www.americanrevolution.org/artillery.php, which is a very nice web site with good information about Revolutionary War artillery.

Another web site (link found below) says,  Clearly the 24lb and 16lb guns were prevalent at the time.( Note that due to a lack of internal gun foundries, most Spanish cannons were produced either in Italy or the Spanish Netherlands. But much of the shot was forged in Spain. 

The smallest caliber cannons were not mounted on wooden carriages but on the railings of the ship. These were principally guns of 5lbs or less, and their principal purpose was not to damage an enemy ship, but to repel boarders. As such they often did not carry an iron ball as shot, but sharp fragments of sharded metal which formed a deadly curtain of shrapnel when fired.
Here is the link to the web site providing that information.

http://landoflegendslv.com/01library/05research/02top/20ship/SpanishGalleons/Galleons01.html

The shot manufactured in Spain was of poor quality and frequently cracked.

I don't know much about artillery, but from what I've seen so far, I'm starting to wonder if the gun shown yesterday might be a swivel gun.  That seems to me to be closer to its size, even though the exact size is difficult to judge because of advanced state of corrosion.

Click here to see a large variety of swivel gun images.  I have seen a few examples that seem to me to match the approximate size of the one shown in yesterday's post.

It also appears to me from yesterday's photos that the breech could have been squared off some.  As you might have seen some swivel guns had a square or rectangular breech, particularly those that were breech loaded.  That opening in the breech might have also contributed to the way the item corroded.

Illustration from Peterson's Encyclopedia of Markings and Decorations on Artillery, Vol. 1. 
Click here to go directly to vol. 1 of Peterson's work. (It is a pdf file so might take a while to load.) It also also includes an excellent reference list.

In the photos of the find, I see no evidence of reinforcing rings, which seems to me to support the idea of it being a swivel gun.  It is possible that they are just worn away.

I also see no evidence of side trunnions, which also seems to me to be consistent with the idea of a swivel gun.

Like I said, I'm don't know much about artillery, and all I am doing at this point is wondering about possibilities.  I hope others will add their thoughts.  If you can tell me I'm completely wrong, please do so.

I really like these kinds of research projects because even if you don't come up with the correct answer right away, you always learn a lot in the process.  I enjoyed looking into the subject, and learned a lot myself.

For me leaning what you found can be as much fun as making the find.  It definitely adds a lot.

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On the Treasure Coast it is simply a beautiful day.  The surf is smooth.  Great day to be on the beach or in the water.

Happy hunting,
TreasureGuide@comcast.net