Lot 31957 – 1942 (Mar 9) Pair of covers sent registered to the

1942 (Mar 9) Pair of covers sent registered to the same addressee in Canada, one with 1938-48 2 1/2d imprint block of four the other with 3d block of four, both with “Examined in connection with / Finance Regulations” labels in buff (see last paragraph on p.97 of Britnor for more info), attractive pair