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Type: stamp Issuer: Turkey Date: 1990 Denom: ? Visibility: public Image owner: none postage 10/23/1990 400l multi dt=communications methods wmk=PTT & crescent & star Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/2673/792/Telephone-Switchboard-Computerized-Telephone-Exchange.jpg Uploaded June 15, 2017, 7:34 pm by Stan Shebs