Stamps, post office technology design type | StampData

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Stamps, post office technology design type

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Great Britain

postage

1969, Oct 1 post office technology unwmk p. 14x14.25

Colnect-4516-358-National-Giro--quot-G-quot--Symbol.jpg

Colnect-4516-359-Telecommunications---International-Subscriber-Dialling.jpg

Colnect-4516-360-Telecommunications---Pulse-Code-Modulation.jpg

Colnect-4516-361-Postal-Mechanisation---Automatic-Sorting.jpg

X	5d	multi	National Giro G Symbol
X	9p	multi
X	1sh	multi	diagram of pulse code modulation
X	1sh6p	multi	automatic sorting

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