Does anyone have dust cover dimensions?

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I have 2 dust covers that look suspiciously like 321 covers, but obviously it's very hard to tell when comparing photos. Does anyone have dimensions of the various types of covers for 321 movements? Thanks in advance.
 
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afaik, the dust covers changed over the course of production but they aren't caliber specific and should work on either a 321 or 861. I’ll try to take a closer look, but I believe my 145.012, 145.022-68, and 145.022-69 have the same or similar covers.