You can get a general feel for it by seeing if the cylinder locks up tight when the hammer is cocked. Feeler gage the gap between the cylinder and the back of barrel. Just throws a flag to look more carefully when I see a part missing (the threaded outer end of the ejector rod).
Here's a similar one:
[URL]https://www.oldcolt.com/products/colt-police-positive-32-20-4-sn-284731-mfg-1923[/URL]
And an articlefrom American Rifleman, which I believe is a reasonabley reputeable source regarding firearms tech.
[URL]https://www.americanrifleman.org/content/the-32-20-winchester-center-fire-history-performance/[/URL]