Thanks guys, I agree on the Stirleig sounding German, but like you, couldn't find anything at all on google or elsewhere.
I may try and go back and find a day manager at the gun counter, I usually go in at night. The stamps on the flats that I could see where in good shape, so I think once I get it open it would be easy to ID.
My guess would be that leaving the store with the gun is a no starter.... Johnny Morris frowns upon such things I think.
Again, I am not sure why I am so intrigued, it's priced high for it's condition and it's a 12, but some feels right at the shoulder.