I just bought out the contents of an old garage. This display rack was one of the pieces. I can’t find another example of it anywhere. Hoping someone can tell me a little bit about it.?

battery rack ? .. ...

Probably. 50’s?

possible advertisement went in window of rack ? .. ...

Yes there was but totally disintegrated

Spark Plugs?

Do you have an idea of value range?

I sold this similar one about 6 years ago for $175, they are both battery displays. I would guess yours is 200-400 in it's present condition, you might get a little more if it would clean up a bit.