It's obviously not sent as a momento of a visit. Perhaps the sender and the recipient both had an interest/connection with the religion/faith or the suppliers of the church structures. Seems an odd card to just send to someone without an interest, especially as the sender wasn't sending it from Handsworth.And its especially interesting that it was a card notifying who the suppliers were in London. Alternatively, it could be a card the sender just happened to have and used it, not having anything else they could use to send a keep in touch message giving an update on things (chilblains, planting hedges etc !)