Home / Stamps / Great Britain Stamps / King George V 1911-1935 / 1929 Postal Union Congress 1929 Postal Union Congress Sort by: Most popularWhat's newPrice low to highPrice high to lowName A to ZName Z to A Showing 14 of 14 results View Available to order SG434 ½d Green More details Quickview SG434 ½d Green £0.90 More details Quickview Available to order SG434a ½d Green (WMK Sideways) More details Quickview SG434a ½d Green (WMK Sideways) £60.00 More details Quickview Available to order SG434wi ½d Green More details Quickview SG434wi ½d Green £15.00 More details Quickview Available to order SG435 1d Red More details Quickview SG435 1d Red £1.50 More details Quickview Available to order SG435a 1d Red (WMK Sideways) More details Quickview SG435a 1d Red (WMK Sideways) £65.00 More details Quickview Available to order SG435wi 1d Red More details Quickview SG435wi 1d Red £27.00 More details Quickview Available to order SG436 1½d brown More details Quickview SG436 1½d brown £2.00 More details Quickview Available to order SG436a 1½d Brown (WMK Sideways) More details Quickview SG436a 1½d Brown (WMK Sideways) £50.00 More details Quickview Available to order SG436wi 1½d Brown More details Quickview SG436wi 1½d Brown £13.00 More details Quickview Available to order SG437 2½d Blue More details Quickview SG437 2½d Blue £14.50 More details Quickview Available to order SG438 £1 Black More details Quickview SG438 £1 Black £690.00 More details Quickview Available to order Set of 4 SG434-437 More details Quickview Set of 4 SG434-437 £17.00 More details Quickview Available to order Set of 3 SG434wi-436wi More details Quickview Set of 3 SG434wi-436wi £50.00 More details Quickview Available to order Set of 3 SG434a-436a (WMK Sideways) More details Quickview Set of 3 SG434a-436a (WMK Sideways) £170.00 More details Quickview