Full-Color Uniforms of the PRUSSIAN ARMY: 72 Plates from the Year 1830 from a garage sale recently (yard sale to our northern allies).
I've never come across it before but it's a rather nice tome, softcover and about 12" x 10". There are 72 coloured lithographic plates in total and they are lovely. I suspect it might be part of a series but haven't come across anything that might indicate other related works.
If anybody knows more about it (i.e. if it formed part of a series) I'd very much like to know.