I have seen similar slipper patterns, but none that are knit and assembled in this way. It was a favourite of Mae Telford, she also used to assemble the slippers for friends who would mail them all the way from England to Canada because she was the only one who could remember how to put them together.

In the small print, I say this “Please feel free to use, but do not sell or use this leaflet for profit”. What I mean is, give the leaflet away, print it, email it, whatever, just don’t charge people money for it, it is free, and can be freely shared. I’m not intending to say anything at all about your finished objects, they’re yours. :)