This is one of, if not the last of the GE meters for the mass-market. Weston held out through the rest of the decade, but GE bailed when the state of the art went from Selenium to CdS. A shame, since GE made some good stuff.

The PR-n series was the high-end (the DWs were the middle, and the Mascots the bottom) of the range. This was meant to compete with the Weston Master IV. It doesn't have all the stuff, but it's clean and easy to read.

Mine has seen better days. There's a crack in the window (hard to see here) and the previous owner had put a couple of pieces of white tape for marks (you can see them at f8, f11 and f16) and it's been tough cleaning them off. Thanks.

This is a minor revision to the PR-2 Guardian. Just looking at it, I can't figure out what the point is. The Guardian had several changes from the original PR-1, but this one seems to offer almost nothing other than minor cosmetic tweaks to the meter face and calculator dial; not necessarily for the better. It doesn't offer any new accessories, it doesn't do anything more. Mine suffers from the same sluggish movement or sticky needle-lock as my Guardian, and is likewise impossible to use without reading the manual. Even the owner's manual is thinned down and not as informative.

Still, a good, capable meter if/when it works, and if you want to spend the time to learn it. But I think the Guardian has a slightly better dial, and the PR-1 is best overall.