Help! What Coin Is This Woman Wearing? Senegal, 1910

So I did some digging into the coins used in Senegal at the time, and besides French coins, cause French colony, apparently a good amount of coins from neighboring Gambia, which was an English colony. So my new guess is some large silver Edward VII coin such as the Crown or Florin
https://en.numista.com/catalogue/pieces4716.html
[url]

FWIW, I found a better-resolution version of the pic online, blew it up to 5x in my browser, took a screenshot of the result, and cropped (and slightly resized) the screenshot in the CCF image optimizer.

The pic is very blurry, but it might help a little regardless...



For now I don't think I can entirely rule out Edward VII, but mostly only because all the other options are worse.

[EDIT: currently looking through 56 pages of Numista results for 25-45 mm silver coins from 1800-1915, trying to find anything with a similar beard and a similar bust termination. None so far but I've barely started.]
[EDIT 2: so far the best match, by some margin, is Leopold II of Belgium. But I'm only at page 4. I'll post other plausible matches as I go.]

All the (near-)matches I found on those 56 pages, excluding patterns and other similarly extremely rare types...


German States - many, all not quite there but similar
(mostly scarce small-state issues from the 1890s and later - not the kind of stuff likely to end up in Senegal circa 1910)

- Friedrich I of Baden, 5 mark (there's also a 2 mark but the head seems too far from the edge there)
- Ludwig V of Hesse, 5 mark (there's a bunch of other types but none are very common)
- Leopold IV of Lippe, 3 mark (also 2 mark, both very scarce, and both not very close)
- Friedrich Franz II of Mecklenburg-Schwerin, 2 mark (not that close TBH)
- Heinrich XIV of Reuss-Schleiz, 1 vereinsthaler (also 2 mark; the nose is off, I think)
- Ernst II of Saxe-Coburg-Gotha, 2 thaler (very close in shape, but one of the rarest options listed)
- Bernhard II of Saxe-Meiningen, 2 gulden (also close but also rare)
- Albrecht Georg of Schaumburg-Lippe, 3 mark (also 2 and 5 mark, much rarer)
- Karl Gunther of Schwarzburg-Sondershausen, 2 mark (also 3 and 5 mark)
- Karl I of Württemberg, 1 vereinsthaler (several types, all scarce)
- Wilhelm II of Württemberg, 5 mark (also 2 mark)


Non-German:

- the aforementioned Leopold II, in Belgium and Congo Free State, 2 and 5 francs
- Napoleon III, 2 francs (the far more common 5 francs is way off on the bust termination)
- Edward VII, 1 rupee for India, florin and crown for UK
- Vittorio Emanuele II, 5 lire #1, 5 lire #2, also 2 lire, one of the closest options so far
- Oscar II of Norway, 2 kroner (not very close TBH)
- Carol II of Romania, 5 lei (also not that close)


FWIW I still think it's probably Leopold II, but I'm no good at portraits and there are too many other options.

Quite a mystery!

I want to believe Louis Napoleon because I agree with andi that France is the most likely choice. But the neck truncation is not correct, and the bust of Louis would occupy more space.

So maybe we refer to Sherlock Holmes: when you have eliminated the impossible, whatever remains, however improbable, must be the truth?

@j1m has pointed out the choices which don't seem possible for many different reasons. So, maybe it is not a coin at all, but a medal of some kind?

It could be a Napoleon 5 Francs, but the beard does not match. But the same goes with all of the other suggestions. Perhaps it has been altered or damaged?
Here is my 1811 5 Francs - 37mm diameter. However, the lower neck of the bust does not really match.