Se-tenant: Defective Plug + Ladder (Berlin 1974)

Defective Plug + Ladder (Berlin 1974)

01 January (Berlin ) within release Accident prevention goes into circulation Se-tenant Defective Plug + Ladder face value 50 German pfennig

Se-tenant Defective Plug + Ladder in catalogues
Michel: Mi: DE-BE W59

Se-tenant is horizontal format.

from HB17 bottom imperforated

Also in the issue Accident prevention:

Data entry completed
93%
Se-tenant Defective Plug + Ladder in digits
Country: Berlin
Date: 1974-01-01
Print: Typography
Size: 44 x 26
Perforation: comb 14
Emission: Definitive
Format: Se-tenant
Face Value: 50 German pfennig

Se-tenant Defective Plug + Ladder 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).

Se-tenant, Defective Plug + Ladder, Berlin,  , Energy, Occupational Safety and Health