I came across this vintage Merkur and am hoping someone can help me out with identifying it's age. I know that Merkur made razors for many different companies so I assume that the name on the inside of the box is one of those companies.
it looks a lot like a 15c with all the plating gone. Not sure though if the 15c ever had a case like that.
Often the European seller used a custom case advertising the shop.
Yes, it looks like a No.15 (the modern C designation came much later, maybe it is for chrome)
from a 1956 sales brochure