№ 2618. 175th anniversary of P.M. Golubitsky (1845–1911), inventor

16.03.2020
Artist-designer – Kradyshev A.

№ 2618  

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Pavel M. Golubitsky (1845–1911) is an outstanding Russian inventor in the field of telephony.

P. Golubitsky’s inventions are as follows: a dipole telephone, a multipolar telephone; a coal powder microphone, a microphone with a comb-like arrangement of coal; a power supply system of subscribers’ microphones with a common battery situated in the central station, which provided the means of building large urban telephone networks; and a telephone switch to interconnect pair-wise several telephone lines. P. Golubitsky was a pioneer of telephone service implementation on railway transport.

The stamp provides a P. Golubitsky’s portrait and a phone set of his invention.

 

Paper Printing method Perforation Format of the stamp Edition
Chalk surfaced Offset + security system Comb 12¼:12 42 × 30 mm 154000

Sheet  

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please contact us by e-mail: order@marka-art.ru.

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A sheet with formatted margins (3×5) with 14 stamps and a coupon.

 

Paper Printing method Format of the sheet Edition
Chalk surfaced Offset + security system 146 × 174 mm 11000

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