This is a pair of script emblems for the Plymouth Belvedere automobile, which was produced from 1954 to 1970; in 1954 it was considered the top of the Plymouth line.
The term Belvedere was used in conjunction with the Cranbrook line of Plymouths, from 1951 to 1953: in 1954 it debuted as a style of it's own.
This script emblem has a right-leaning uppercase "B", without the serif that was added in later years. It dates to 1954 and 1955.
Each one measures 9.5" across, the B is 4" from bottom to top (at an angle). The letters are about 3/8" deep.
Just found the part number, it is: SC 15 (S or 5 maybe?) 1168, with a 2 on it's side. see attached photo
There are 3 studs on the back of each one, the first two are 1/2" deep, the third is only 3/16" deep on one, the other has the two longer ones, and the shorter was is only about 1/8".
We've actually used one of these as decor in our home now for many years. The studs on the back allow this to sit on a shelf perfectly, with a bit of a lean to the back. Today, we just found it's mate, so we are selling these as a pair.
We realize that more and more classic cars are being renovated and being brought back to life again, and finding original parts like this can really help to make or break the complete authentic look of a car.
Price is for the pair.