Image Colnect-5171-035-Wolfgang-Kempelen-conducted-study-into-human-speech.jpg

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Type: stamp Issuer: Slovakia Date: 1994 Denom: ? Visibility: public Image owner: none postage 12/12/1994 6sk multi d=Wolfgang Kempelen unwmk Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/5171/035/Wolfgang-Kempelen-conducted-study-into-human-speech.jpg Uploaded March 22, 2019, 4:15 pm by Stan Shebs