Buy error in block, Romania, 1901-40: Unused

505 Error VF in block of 9 cv $ 650 ! see pic!

SPECIAL ERROR IN BLOCK OF 4 STAMPS ROMANIA HUNGARY 1919 Karl 15 BANI CLUJ MNH

8 ERRORS IN BLOCK - ROMANIA HUNGARY 1919 ORADEA PARLAMENT OCCUP/50 Lei MNH

Canal Zone Scott #85a "ZONE ZONE" Error in Block of 12!

Special U.S. Error #505 in Block of 4 Collection.

Barbados error missing hyphen in block Victoria half penny overprint

505, 5¢ ERROR IN BLOCK/6 SOUND or UNUSED

ERROR in Plate Block No. Sc #1501 - Progress in Electronics, MNH - VF

4A IRAQ 1941 OFFICIAL O26b ERROR in a block/4 MNH

Vietnam Block 4 International stamp exhibition in Sofia ’79 ERROR (30x-Perforati

Vietnam Block 4 International stamp exhibition in Sofia ’79 ERROR

Romania, Occupational issue, block, B missing in Bani, ERRoR

Vietnam Block 4 International stamp exhibition in Sofia ’79 ERROR (12x-Perf

USA: 1917. Scott #505 Beautiful or Fresh copy of 5¢ Error in Block of 6, Mint NH

Vietnam Block 4 International stamp exhibition in Sofia ’79 ERROR (12x-Perf

505, DOUBLE 5¢ ERROR IN BLOCK OF 12 F/VF NH Cat $2000.

US.SC#2048 block of4 MNH error in color.

505, Mint 5¢ ERROR IN BLOCK/8 F/VF OG NH Cat $675.00

1912-24, Wmk. Royal Cypher. PencF Error Mounted Mint in Block of Four No Faults

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