This is a Smith & Wesson Model 25-5 in 45 Colt. It has a 5 3/4 inch barrel and German Proof marks. The marking indicate that it was imported to Germany, then brought back to the US. There is no import mark for a US importer.
Based on the input from another forum and my own research, the marking break down like this:
Eagle Over N = Final Nitro Proof - barrel & receiver separately
Wicker Basket = Mellrichstadt Proof House
ahak = for Albrecht Kind aus Hunstig German importer
Based on the input from another forum and my own research, the marking break down like this:
Eagle Over N = Final Nitro Proof - barrel & receiver separately
Wicker Basket = Mellrichstadt Proof House
ahak = for Albrecht Kind aus Hunstig German importer