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Israeli Model No. 4A1
The Israeli Model No. 4A1 was a licensed copy of the German Drager Simplex with an updated exhale valve assembly and drinking straw. This example was made by Shalon Chemical Industries, with different parts from 1969, 1980, and 1987.
Similar masks in my collection: German Simplex, Israeli Model No. 4
Rubber stamps
Manufacturer and size stamps on forehead "1" "SW"
Stamp
Stamp inside mask "7"
Rubber stamps
Manufacturer and date stamps inside mask "S" "80" "2.1"
Rubber stamps
Date stamp inside mask "69" "5.2"
Rubber stamp
Date stamp on exhale valve "23-8-87"
Filter
Filter stamp top view "88 665"
Filter
Filter with sticker
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