The Westinghouse markings on the Blue Mazda...
The Westinghouse markings on the clear Mazda match these as far as the etched markings, but this clear still has the paper tag which barely able to be read in this image....
One nice tasteful example to come from the post war era is this one, I do not know who the manufacturer was, the designer, or the actual date this was introduced, but I have a fair amount of reference material to suggest this came out with a fair amount of "French Provincial" revival that pretty much began in 1941, put on hold for the war, then came out full force after the war- But then dropped out of fashion as "Danish Modern" and the "Jet Age" hit the scene.
It may not be evident on your monitor, but there is a faint purple shade to the whole globe. Compare it to the white porcelain base that retains it. The camera renders in a bit of a yellow shading to everyhting in this image, but if you were to adjust the image to reduce the yellow, you would make out the shading.
The key is to measure the "fitter"- The dimension on the fixture that the globe has to fit inside to be retained by the retaining screws. Older globes are going to be either a closer fit than you may expect, or they may be slightly smaller than expected. It is for this reason that you see porcelain fitter bases on these globes pictured here instead of the cheap modern steel ones- Which can work, but you need to pay close attention to the amount of threads coming through the metal fitter base. I do have vintage globes on the small lights on two ceiling fans, and they fit snug, but I have to be careful when relamping that I do not knock the globe loose because the retaining screws on one fan thread in only perhaps 4 full threads, or less; there is "just enough" for the screw not to pull out/fall out.