Technical chevy horn ring info needed

I am trying to find one these, it looks to be a spacer. I do not know what it called so I can find one some where.

 

looks like the one they used on mid 50s Chevy cars?

https://www.classicchevy.com/chevy-horn-ring-installation-kit-1957-bel-air-and-210.html

if you look in the Chevy parts book, maybe you can find the proper name for it.

http://chevy.oldcarmanualproject.com/1929_57chevyparts/index.htm

 

Call 503-234-6674. Dan's Classic Auto parts in Portland, Or. They open at 9 AM PST, Monday.

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I FOUND IT IN OLD MOTOR MANUAL
part# 757517
Horn Contact Pivot Ring

Thank you guys for responding it made think where I had saw it!