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Philippines 1936 Silver Peso, An Interesting Piece Of History.

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217 Posts
 Posted 09/13/2016  2:22 pm Show Profile   Bookmark this topic Add cara to your friends list Get a Link to this Message
This Roosvelt-Quezon coin was part of the Commonwealth commemorative set of Philippines in 1936. Many of them were part of the sunk Manila Bay Treasure (*)

This one has signs of corrosion which may be evidence of sea salvage.

Weight: 18.3 gs.
Diammeter: 35 mm
Thicknes: 2.3 mm
SG: 10.1

The following information is from Krause Catalog and Numista:
Catalog: KM#177
Weight: 20 gs
Composition: 0.900 Silver .5787 Oz. (actually is 0.800 .514 Oz.)

A specific gravity test 10.1 indicates the silver content is close to 0.750. At this point, the weight loss (1,7gs) and SG difference made me doubt about the authenticity.

Can the corrosion explain the weight loss?
A more detailed look gave me the answer, this coin had been pierced and repaired !

Someone has filled the hole and repaired the date, so a restoration with bad quality silver and the corrosion would account the weight loss and SG

Despite the fact that it is in very poor condition, it is a coin with history.

(*) Here is an interesting article about the Manila Bay Treasure:

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United States
7552 Posts
 Posted 01/12/2022  2:00 pm  Show Profile   Bookmark this reply Add commems to your friends list Get a Link to this Reply
I realize that I'm bumping a long-dormant thread, but, while cleaning my "Drafts" list here on CCF, I came across a reply I drafted back when the original post was "fresh." I'm not sure why it didn't get posted at the time, but I think it's still relevant, so...

Interesting bit of detective work, thanks for sharing.

If you're interested in some additional background on the coin, one of my earlier posts might prove useful:

- 1936 US-Philippines Commonwealth Commemorative Set

Collecting history one coin or medal at a time! (c) commems. All rights reserved.
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