The Carreas slip in album
containing "Uniforms of the British Empire Overseas"
This is an incomplete set - some are stuck in - some are mounted loose - none are in any order
the whole thing is a complete mess really but I think its at least retrievable given some TLC.
The cards seem to be in a reasonable condition but then I dont know whats good or bad.
The missing cards are - 1-3-10-12-15-17-20-25-28-30-33-36 & 43.
So at least you have 37 out of 50.