Thanks. It doesn't look quite right compared to the example on Richard's site but obviously it's a lot more worn.
The other 4 1861s turned out to be all 7+G, F282 as far as I can tell so nothing exciting there. I didn't have one so the best will fill a gap, and I wanted one to send to the chap who sent me the F269 so he has one of the same date.
For a quid each I'm not too distressed.