Sujan Jig-Saw, The

This little known manufacturer of good quality card jigsaw puzzles is thought to be of British origins, but this is not stated on the box, so is slightly uncertain.
Most examples found so far seem to be of 450 piece and fully interlocking nature. The print quality is good and the backing material is of thick and very dense card. An item number of 302 on the example The Morning Ride, is not thought to be a production number and it seems unlikely that there were 300 other titles available previously. I am also aware of another example, listed as number 301-Hot on the Scent, so perhaps these were in fact the first two produced in a relatively short-lived manufacturing run?