ocr: THE SLEREXE COMPANY LIMITED SAPORS LANE - BOOLE DORSET - BH25 8ER TELEPHONE BOOLE (945 13) 51617 - TELEX 123456 Our Ref. 350/PJC/EAC 18th January, 1972. Dr. P.N. Cundall, Mining Surveys Ltd., Holroyd Road, Reading, Berke. Daar Pete, Permit me to introduce you to the facility of facsimile transmission. In facsimile a photocell is caused to perform a raster scan over the subject copy. The variations of print density on the document cause the photocell to generate an analogous electrical video signal. This signal is used to modulate a carrier, which is transmitted to a remote destination over a r ...
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