750597 SG 120s-134s var. certleelee10:19 amSeptember 20th, 2023 750597 SG 120s-134s var. cert 0 SG 120-134s var. 1951 King George VI 1c. to $2.40c. Perforated ‘SPECIMEN’. With Cert. UNIQUE. ONLY SPECIMEN SET EVER PRODUCED.
