Home built in 1954. I am in need of the counterweight (?), the tear-drop shaped piece

A home owner from Spokane, WA says:
Hi, please see the attached photo. I'm in need of the tear-drop shaped piece. Sorry, I have no idea what it is called.
Thumbnail of the uploaded file named closet part.jpg
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Tom from SWISCO responded:

Hello! That's a very old door, but I think we can still help. The first products to jump in my head were our 23-048 and 23-051. Look these over and let me know if either match up. The only difference between them is the offset, so that's what you'll want to check.

If neither will work, we'll do our best to find something else!

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