Bidspirit auction | British Commonwealth - Canada

British Commonwealth - Canada - 1977, Queen Elizabeth II, 25c multicolored, transition block of six (3x2, fold and some separation horizontally), stamps at left and in the middle with normal amount of silver, bottom right stamp has silver shortage and top right one with silver apparently omitted and it has just traces of embossing, full OG, NH, VF and scarce block, Sc. #704, var