Stainless Steel Chainplates

Description

Listing is for one.
I bought the inventory of a small boat builder years ago and am working my through some more of the items. These are chainplates that may have been for the manufacturing of Lightnings, but I am not sure. Here are the dimensions:
Rectangular Base is 3/4" X 2.5" and is 1/8" thick
The vertical piece is 1" x 2.5" and is also 1/8" thick
holes are 1/8"