Hidden document in seatpost!

What does it say at the top of the document, Singspeed? If there is a name I will do some lookups, see if I can find out more about this chap. It looks like he was called George A Cowell and he was from Coventry, is that right

Yes, that was the name on the top of the document. It must have been put into the seat tube of the bike so it could be recovered if stolen. I've heard that was common practice. It's a good idea tbh.