Lot 90 Canada BABN Test Booklet & Coil "Baby Sisters" Essay Tricolor Baby Sisters, 1966 Centennials, A Very Fine Test Block Of 4 With Davac Gum

A very fine test block of 4 of the tricolor Baby Sisters essay from the 1966 Centennial test prints with DAVAC gum. According to Harris there were a handful of multicolour test sheets produced by BABN and this block would have come from one of those sheets. These were the test printings conducted by BABN that led to the production of the first integral booklet, BK56, which was printed in 2 colours with the new Gobel press.

Our best estimate of the value, based on the scarcity of the singles is $125.