Stamp: Defective plug (Berlin 1974)

Defective plug (Berlin 1974)

01 January (Berlin ) within release Accident prevention goes into circulation Stamp Defective plug face value 40 German pfennig

Stamp Defective plug in catalogues
Michel: Mi:DE-BE 407C
Yvert et Tellier: Yt:DE-BE 395c NP Top

Stamp is square format.

top cut

Also in the issue Accident prevention:

Data entry completed
60%
Stamp Defective plug in digits
Country: Berlin
Date: 1974-01-01
Print: Typography
Perforation: comb 14
Emission: Definitive
Format: Stamp
Face Value: 40 German pfennig

Stamp Defective plug it reflects the thematic directions:

In physics, energy (from Ancient Greek ἐνέργεια (enérgeia) 'activity') is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J).

Stamp, Defective plug, Berlin,  , Energy, Occupational Safety and Health