Stamp: 18th century clocks (Czechoslovakia 1979)
18th century clocks (Czechoslovakia 1979)
01 October (Czechoslovakia ) within release Historic clocks goes into circulation Stamp 18th century clocks face value 60 Czechoslovak haléř
| Stamp 18th century clocks in catalogues | |
|---|---|
| Michel: | Mi:CS 2530 |
| Yvert et Tellier: | Yt:CS 2356 |
| POFIS: | POF:CS 2401 |
Stamp is square format.
Also in the issue Historic clocks:
- Stamp - 18th century clocks face value 40;
- Stamp - 18th century clocks face value 60;
- Stamp - 18th century clocks face value 80;
- Stamp - 18th century clocks face value 1;
- Stamp - 18th century clocks face value 2;
Stamp 18th century clocks it reflects the thematic directions:
A clock or chronometer is a device that measures and displays time. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units such as the day, the lunar month, and the year. Devices operating on several physical processes have been used over the millennia.
