Did a quick search there and not a lot of help, but in this thread, at post #9 scottydoint says it's probably a German razor, likely a Merkur. Seems confirmed by this thread.
Possibly strengthening the theory that some of these travel razors were made by Gillette, I have one with a Gillette Old Type Head (marked Gillette) and a two piece handle identical to yours. The nickel plated box is marked 'Germany' and contains a tiny pop-up head shaving brush along with the razor.
They also shave really well - I regularly use mine as a travel razor.