Thanks HarrisonFan, after looking around on the forums the last few days, I noticed that my razor is actually in quite good nick for being a used "vintage" razor. Could've been much worse if you keep in mind that it has been lying in a cupboard for plenty of years.
Currently I daren't touch it, least of all the etching.

drmoss, we guessed it must've come from that period, and it proves our idea that it from my GF's greatgrandfather. Thanks for that extra bit of info, hadn't heard anything about that.