"CHANDOS" JIG-SAW PUZZLES

Undated promotional flyer discovered in this Puss in Boots puzzle. This piece of literature shows net prices for jigsaw puzzles from series A to E, along with details of various other series', including the Bairnsfather puzzles 1-19.
In light of this latter reference and the dissection wording on the header, I estimate the list to be of c1920's origin. Interestingly the prices quoted are less than this four page Chandos Puzzles flyer, which I believe to be of later, c1930's origin.