Belgium 1951/1957 - Number on the heraldic lion: 5c violet-gray - 2c yellow-brown - 3c light purple in velvet of 4 x 100 - OBP/COB 849 + 1026A/B

Belgium 1951/1957 heraldic lion stamps: 5c violet-gray, 2c yellow-brown, 3c light purple in velvet of 4x100, OBP/COB 849 + 1026A/B, MNH.