Thank you all for your views on to scope or not. I appreciate your input. Here in the UK, 1903 stutzens/carbines are rarely seen advertised. I had one quite a few years ago and stupidly sold it. Had I found one at a price I could afford I'd have bought it, but this one turned up at a sensible price and I couldn't say 'No'.

I believe I will scope it having given quite some consideration to the matter - even though it does also have the MSch. peep sight fitted (Photo). I just need to take care how it's done.
Cheers, deeangeo