Lot Of 4 Earthquake Relief Stamps SC #B151a Blocks Of 4 (16 Stamps) MNH

Lot of 4 Soviet Union earthquake relief stamp blocks, Scott #B151a, with 4 stamps per block for a total of 16 stamps. Very good pre-owned condition; mint, never hinged, with no evidence of postal use. These Soviet Union stamps are suitable for worldwide, European, or disaster relief stamp collections.