Recognition needed

 

I'll be grateful, if you can provide me any information about the following insignia.

 

Rav-Samal (Chief Petty Officer)? 1960s-1970s?
Field sleeve stripes with professional insignia? 1950s-1970s?
Rav-Samal (Sergeant Major) metallic insignia (sleeve? wrist?) - 1948-1951
Shabas (Israeli Prison Service) junior officer's insignia? 1950s?

Israeli Air Force junior officer's shoulder insignia? 1950-1951?

Israeli Air Force cadet's shoulder insignia?

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