In this thread you can post informations about the Backpack  #4. Original pictures, worth knowing, found parts and so on. It should help you build backpacks that are as accurate as possible. I will start with a picture of my SWAT-Pack and the individual components that I know:   1. Karrimor Frame with round (!) corner (A.3 Frame?) 2. Plumber Cups 3. Tupperware "Stow-n-go", Nr. 767 4. Radio: "Sonix Victory 75" or "Northstar MT-1809" 5. "G