Sarcas Jigsaw Puzzles

This is a little known British brand name of wooden jigsaw puzzles with an address of:
Sarcas Dean, Rickmansworth Lane, Chalfont St. Peter, Bucks.
First example found is of a purely push-fit, or non-interlocking cutting style and has been intricately colour line-cut. The box style is more in keeping with the type used for library puzzles than those intended for retail, but with such limited information, it is difficult to judge whether they were a manufacturer, or perhaps a lending library, or indeed, both!
Special thanks to Robin Rudd for bringing this uncommon brand to my attention,