Help With Information On Belgian Token/Medal.

Yes, definitely some kind of medal from the Liege World's Fair. The allegorical head on the obverse is wearing a mural crown, typical of personifications of fortified cities.

If the text, "Deutsche Waffen" et cetera is in relief, struck up rather than engraved, we can infer that it was made to be distributed by the exhibitor named, rather than given to them as a prize or acknowledgement of participation. I'm guessing that the design of the uninscribed side, and quite possibly the encircling inscription, was copied from the official prize and souvenir medals of the Fair itself, or else that the mint which produced those also made "customized" versions for the big exhibitors. Either way, the medal pictured is supremely ironic, considering that only ten years later, the products of the "German Weapons and Munitions Works Berlin-Karlsruhe" reduced Liege to ruins in what was generally regarded as one of the great acts of barbarity of the First World War.

What size, weight, and metal is your specimen?

I have here a French biographical dictionary of coin engravers and medaillists, but I cannot make out the name on the obverse, near the front of the neck, from the photo. If you can work it out, I'll look it up.

Vesely's "Catalogue of Coin Designers and Engravers" lists only one plausible match, Rudolf Ferdinand Marschall of Austria, born 1873 died 1967. Marschall is credited with the obverses of the 1, 5, 10, 20, and 100 corona of 1908, the 5 and 20 corona of 1909, the 10 corona of 1909—12, and the 2 schilling of 1935. Also the Bulgarian 50 stotinki, 1 and 2 leva of 1912—16, and the 20 and 100 leva of 1912 ; and a plaquette for the international laryngo-rhinology congress of 1908.

Now, as it happens, some of those coins are in my collection. Unfortunately, inspection of the 1 and 5 corona of 1908 shows no signature on the obverse, and the 50 stotinki of 1912 has "R. Marschall" fully written out, so I can't compare against the "R.M." here. I don't really have enough material for a fair comparison, but it doesn't look like the same style to me.

I seem to have hidden the French book from myself for the moment, but as soon as I disinter it I'll check and see if there are any further clues.