Tuesday, July 16, 2019

7/16/19 Report - Native American Plummet. Old Spanish Friendship Bracelet. Roman Shot. Archaeological Metal Detecting. Old Lead Physics.


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

Plummet Found At Jupiter,Beach.

A few days ago I showed some arrowheads that had been found on the Treasure Coast, and I asked people to send in Native American artifacts they found.  Bill T. sent in this photo of a plummet that he found in front of the Jupiter Civic Center about 4-5 years ago when the beach was heavily eroding.  That is a nice piece that would bring a good price.

Congratulations, and thanks Bill!

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Yesterday I posted a photo of what I think might be a silver bracelet from a 1715 Fleet wreck and mentioned that there were some things about the design that are common to other Spanish shipwreck artifacts that have been found.  I mentioned that rings and bracelets from the period and culture often featured hands.  Then I noticed this "friendship bracelet" reproduction on sale at the Mel Fisher Museum web site.


The bracelet I showed yesterday is thinner and the hands are not clasping, but there are some similarities.  The one shown here also has ruffled cuffs, although they are a little different too.

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I was reading a good article on an archaeological investigation of a Roman assault on a hillfort in Scotland.  The article included a discussion of the distribution of shot and what could be learned from that.  Included was the following discussion of the use of metal detectors.

Unlike many battlefields that lie below featureless arable land, our site lay directly on top of a fragile and eroding hillfort from which mass extraction of artefacts would hamper any subsequent archaeological investigation. We therefore proposed a non-invasive metal-detection survey. This aimed to use the latest metal-detecting technology to profile the nature of the metal targets without extracting the finds, and then carry out highly selective test excavation to confirm the projectile scatter. This was made possible by the use of a high-quality reference detector, which was harmonised to the signals received from sling bullets from the 1898 Burnswark excavations held by the museum in Dumfries.

Of course, the use of systematic metal-detecting is not new: it has been around at least since the 1980s, when the pioneering work of Scott and Fox revealed what had really happened to General Custer and the men of the 7th Cavalry Regiment at the Little Bighorn. Indeed, metal-detection represents the primary survey technique for identifying and determining the extent of battles that have taken place since the advent of gunpowder; the Roman lead sling-bullets presented an ideal opportunity to investigate the true extent of the metal-projectile scatter at a site that saw action at a much earlier date. The Burnswark Project was also designed to review the Roman camp morphology and how this related to the hillfort defences (or lack of them) and the wider landscape. It would take a forensic look at the fabric and ballistic properties of the Roman missile assemblage too....


I wonder if someone might be able to find more detail on the specific detector and procedures they used?
Good article that you might want to read.

Here is the link.

https://www.archaeology.co.uk/articles/features/burnswark.htm

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... The use of old lead for shielding increases the sensitivity of our most delicate experiments by orders of magnitude, an increase that is crucial when looking for a reaction that sheds light on new physics. Lead recovered from roofs, old plumbing, and even stained glass windows has been used, but Roman lead from a shipwreck is the best you can find...

That excerpt comes from an article about the conflicting uses of archaeological lead.

Here is that link.

https://newatlas.com/relics-physics-archaeology-roman-lead/30032/

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There has been a lot of talk in the news recently about an asteroid carrying tons of gold and other valuable minerals.  It seems I lost that link though.

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I was thinking this morning of subtitling this blog Treasure Every Day - Almost.

It seems like every morning I think of some type of treasure to talk about.  When I think of it, it surprises me that I almost always have something to say.  But I have a lot of contributors to keep me going - such as Bill's plummet today.

I think it is good to know all the different types of things that can be and are found along the Treasure Coast.  It is really remarkable how much is out there, even though it might seem at times like everything has been found.  When that happens, you just have to do things a little differently, because there is always something waiting to be found.

Doing the same thing over and over and expecting a different result, they say is the definition of insanity.  I don't know about that, but doing something different once in a while can be fun and profitable.

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Barry is fading away, and we are left with another week of predicted one-foot surf.  You can be sure, though, that we will be getting some storms before long.

Happy hunting,
TreasureGuide@comcast.net