Thanks for the lock Gerd. I'm not finding a lot of on-line data for early Opels, and the only picture I can find, that looks like the puzzle photo, is that of the 10/12 PS, hence my submission. The puzzle photo looks like a smaller car, such as the 2 cyl. 10/12, but the hood looks as if it could house a small four cylinder. About the same time frame Opel made a small 4 cyl. with about the same displacement as as the 2 cyl., so I'll try a: 1905 Opel 10/14 PS.