Mid war version 1
Material:
– Aluminium
Frequency:
– Occasionally
Period of production:
– Mid war
Number of prongs:
– 2
Material of the prongs:
– Iron
Variations:
– Not sure
Special features:
– There are probably the same in zinc

Mid war version 2
Material:
– Iron
Frequency:
– Occasionally
Period of production:
– Mid war
Number of prongs:
– 2
Material of the prongs:
– Iron (soldered)
Variations:
– 1
Special features:
– Looks very similar to mid war version 1



Mid war version 3
Material:
– Zinc
Frequency:
– Occasionally
Period of production:
– Mid war
Number of prongs:
– 2 (long prongs that are tapered)
Material of the prongs:
– Zinc (soldered)
Variations:
– 1
Special features:
– Relatively small, there are several other variants with the same design

Mid war version 4
Material:
– Aluminium
Frequency:
– Very often
Period of production:
– Mid war
Number of prongs:
– 2 (long prongs that are tapered)
Material of the prongs:
– Zinc (soldered)
Variations:
– 1
Special features:
– Relatively small, there are several other variants with the same design
Mid war version 5
Material:
– ? (non magnetic)
Frequency:
– Seldom
Period of production:
– Mid war
Number of prongs:
– 2 (soldered)
Material of the prongs:
– Zinc
Variations:
– 3
Special features:
– There are several other variants with the same design