Anyone Know A Reference For These Types Of 19th Century Medals?

The on e on the top left is actually a war commemorative for the Austro-Hungary Prussian 7 weeks war of 1866. Seems to be from the losing side. "Heroic Warriors of Austria". One side is German (Austria) the rear appears to be in Czech. Maybe that is why a cheaper medal was used? I will investigate material density. It looks like some inexpensive base metal (maybe based on zinc).

I have been researching some of the collection. Most them are made of "white metal" tin based alloys that vary from tin to pewter. The white metal densities are coming in 6.7-8.5 g/cc depending on composition (lead likely in the 8.5). None are magnetic. One medal is aluminum. Some are looking like bronze/brass (one density = 8.7, bright yellow brass/bronze) or copper. Most of what I have are from Czechia, many in German and Czech, later ones moving to more Czech only as during this period Czechia was re-establishing their heritage and separating more from German (Bohemia; Austro-Hungary). I am learning a lot about the Czech Republic going through this. I wish I did this before our trip to Czechia/Hungary/Austria (others) last year. I would have had better knowledge and probably would have brought some coins back!

nice coins - make sure you flatten out the staples so you don't scratch other coins with them.

I do need to get my set-up for photographing coins going...