Lot 10419 – 1924 Olympic issue collection with study of plate flaws/varieties, incl. set in mint nh blocks of four

1924 Olympic issue collection with study of plate flaws/varieties, incl. set in mint nh blocks of four (30c with minor faults), varieties incl. 25c with light offset on the gum of the centre, shades. many fly-speck flaws on the 10c and 25c with many multiples, three 25c with shifted centres, a great lot for the specialist on these issues