That SWR meter has to be one of the longest selling items in CB.... I can remember buying one as part of my clandestine kit back in 1980. Dove to the store in Enfield. It was packed in there. Just told them I wanted to buy a CB radio, and everything to start up. Guy says, what makes you think we sell CB Radios? I just laughed. Gave him 30 quid, he gave me a pre tuned antenna, one of those SWR meters, and I had to follow him in my car to a lockup! There he gave me a box with a Midland 3001 in it. Fun times!
And, thanks to you, I just remembered, out in my garage somewhere, there is a Wilson 1000 antenna. I must go retrieve it. Best 11m mobile antenna I ever had!