It was only ever a page in the MBUK calendar. They did one or two large posters of Mint, usually with something else on the other side, one had Mint chasing after a dropped ball bearing across all sorts of countryside, until ending up in a desert where it rolls underneath a fridge! Still makes me smile when I think about it.
The only problem I have with the scans that the one the OP posted comes from is that a sheet of black paper should have been put on top when scanning, because you can see show-through from the other side, the black boxes for each day of the next month. Just one of those things you pick up from having to scan magazine pages for repro. It irritates me, but most wouldn’t notice it.
