Stamp: Boeing B-17G (Liberia 1994)
Boeing B-17G (Liberia 1994)
11 July (Liberia ) within release Roberts Field Monrovia, 50th Anniversary goes into circulation Stamp Boeing B-17G face value 35 Liberian dollar
| Stamp Boeing B-17G in catalogues | |
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| Stamp Number: | Sn:LR 1164b |
Stamp is square format.
Also in the issue Roberts Field Monrovia, 50th Anniversary:
- Stamp - Vickers supermarine Spitfire Mk IX face value 35;
- Stamp - Boeing B-17G face value 35;
- Stamp - Douglas A-20 Boston face value 35;
- Stamp - North American B-25J Mitchell face value 35;
- Stamp - Beech C-45 Expeditor face value 35;
- Stamp - Douglas C-54 face value 35;
- Mini Sheet - Airplanes face value 8*35;
- Stamp - Piper L-4 Cub face value 35;
- Stamp - Martin PBM-3C Mariner face value 35;
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Data entry completed
50%
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| Stamp Boeing B-17G in digits | |
| Country: | Liberia |
| Date: | 1994-07-11 |
| Print: | Unknown |
| Perforation: | Unknown |
| Format: | Stamp |
| Face Value: | 35 Liberian dollar |
Stamp Boeing B-17G it reflects the thematic directions:
Aviation is the practical aspect or art of aeronautics, being the design, development, production, operation and use of aircraft, especially heavier than air aircraft. The word aviation was coined by French writer and former naval officer Gabriel La Landelle in 1863, from the verb avier (synonymous flying), itself derived from the Latin word avis ("bird") and the suffix -ation.
An aircraft is a machine that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. The human activity that surrounds aircraft is called aviation. Crewed aircraft are flown by an onboard pilot, but unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as lift type, aircraft propulsion, usage and others.
