Online catalogues of various record labels?

[anchorman]

Are there online versions of the catalogues from various record labels, or does someone have them on .pdf that they could send to me? Looking for the HMV B., C., and the e.g./e.h. Information in particular, but any lists outside of discogs would be helpful

[Inigo]

I don't know if this will serve you, but there is online version in database form of the w works on HMV by Alan Kelly, check
https://www.kellydatabase.org/Search.aspx
I'm using it very frequently.
After a search, you can even export the results to a txt file. Just try searching for edition in letter B and you'll have a complete listing; I don't know if it works, but maybe it can be done. You can search by many fields in the database. It's incredibly useful!
There is also an advanced search feature.

[anchorman]

Fabulous. Thank you! Found some things I’ve been looking for already!

If there are other sources out there, please comment!

[Wolfe]

There are numerous online discographies around, like DAHR. Or the Kelly database linked above.

But if it's truly old record catalogs that you yearn for, Internet Archive may be your best source.https://archive.org/search.php?query=record%20catalog

The 78 side of "45 Worlds" has become very useful.
https://www.45worlds.com/78rpm/label/his-masters-voice