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Imaging coins in slabs especially, is difficult. The slab is nearest the lens so the focusing is prioritized on the nearest point. Lighting is...
1966 Australia [ATTACH] [ATTACH]
This is the same image as on your medal, with the stylized X on the reverse, https://en.numista.com/catalogue/pieces92673.html but has a solid...
Closest in size and weight, but not exact, I can find is here https://www.worthpoint.com/worthopedia/joachimstaler-thaler-bohemia-1525-47330350...
That edge looks like it was started as a spooning project and soon abandoned
Colonial Issue, 1942-1944 were all for use in the British West Indies. .500 Silver and relatively low mintage Here is the info...
https://en.wikipedia.org/wiki/Thaler This, if it is of any use to you, details the progression from Mining Thalers to Conventions Thalers and...
1967 GB Sovereign [ATTACH] [ATTACH]
Oldest American is a 1883 Morgan Dollar and World is a 1763 Conventionsthaler [ATTACH] [ATTACH] [ATTACH] [ATTACH]
1967 Canada [ATTACH] [ATTACH]
1967 Denmark [ATTACH] [ATTACH]
1967 South Africa [ATTACH] [ATTACH]
I would like to see one before the polishing, you are right it must have been quite distinctive
A .625 silver commemorative. https://en.numista.com/catalogue/pieces2954.html A nice addition for my German 10DM collection, and this one has some...
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