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post office centennials
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post offices
(1980)
post office technology design type
Short desc: post office technology
Used by 4 stamps:
(See all uses as list)
Great Britain 10/1/1969 5d d=National Giro G Symbol perf=14x14.25
Great Britain 10/1/1969 9p perf=14x14.25
Great Britain 10/1/1969 1sh d=diagram of pulse code modulation perf=14x14.25
Great Britain 10/1/1969 1sh6p d=automatic sorting perf=14x14.25
