Stamps, technology (1975) design type

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_494.jpg

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_495.jpg

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_497.jpg

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_498.jpg

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_499.jpg

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_500.jpg

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_501.jpg

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_502.jpg

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_503.jpg

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_504.jpg

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_505.jpg

Stamps_of_Germany_%28Berlin%29_1975%2C_MiNr_506.jpg