Sure is hot out there, still. Had that sinking feeling that all the VU/dB meters were still up north, but managed to find a few. Two out of an old Ampex tape machine which obviously wasn't well taken care of (not that many were, ala broadcast hacks and other typical abuse through use) AND! (drumroll.....) A WESTON in the same case as your Gates! It's not the exact scale mind you, and it looks like some engineer lopped off the little arrow head pointer so they could see the numbers underneath, but it's in the neighborhood at least.
You need not worry about some grand professional standards that these meters must meet: first of all, so long as the movements are the same or relatively close, the scales can either be changed (copied and pasted, for example) or simply calibrated against your mod monitor. Some even flip over to reveal another scale. Second, it's amateur radio, not some "specialty" vocation or professional recording studio. Seeing your work and reading your posts, I'm sure you can handle it.
Take a look at the photos below. I set them up atop my mixing console since it uses the same Weston style meters, making it easy to compare. Also took a separate shot of it for better detail. Keep in mind that I do have others, might be a few more here, definitely more up north. So, if you're not pleased with this one and its shortened needle (which no doubt throws the movement out of its lab-grade calibration eeep) and not in a rush, I can likely scare up a few more in the next few months.
Worst case scenario, you cut the pointer off a junker meter and glue it to this needle. Touch up with some black Sharpie and voila!
