This mold measures 5 3/4" in diameter and is 1 1/2" thick not including the iron ring. I believe it is actually a mold used to imprint butter but I could be wrong. The images are very deep and are the Coat of Arms for the "Most Noble Order of the Garter". The mold has what looks to be "G.C.O." stamped on the back probably by the manufacturer and a handling ring that lies in the recess. The Coat of Arms has the French words "Dieu Et Mon Droit" on the oval and "Honi Soit Qui Mal V Pense" on the ribbon near the bottom. The order was founded by King Edward III in 1348 and the French words adopted by him for the order. Its age is hard to tell but it is most likely pre-1850. Dieu Et Mon Droit - French for God and My Right. Honi Soit Qui Mal V Pense - French for shame upon him who thinks evil of it.
This mold measures about 10 1/2" x 7 1/2" x 1 3/8". I believe this mold is more of a Spekulatius mold than a Springerle mold because it is so large and not very detailed. I'm not sure of the type of wood but it has a nice grain and is heavy. The Horse and Rider were at some point in the past painted but the colors are really nice. The Lion has a very fierce look and will make a great cookie once the mold is duplicated and a useable mold is produced. The mold looks to be from the early 19th century but it could be older or younger.