A character called Graham Eccles is running a Penny Farthing postal servioce in Bude, Cornwall, at present. We saw No 6 on one occasion in the series having a letter delivered by a postman but don't think we saw the stamp (did we ?). On the local ITV News this evening (Weds April 4th) we saw the stamps (design is a penny farthing bicycle) and how they are cancelled (with a rubber stamp like a penny-farthing). He rides about the town on a small-scale penny-farthing bike and even dresses like a Village member. Google something like: Bude Penny fathing post.