Lynn Bogue Hunt Coaster Whirlaway Race store Horse

Gorham Trayette 558B wine coaster.
Lynn Bogue Hunt artist signed.
Whirlaway race horse painted on white milk glass center
in a raised design.
Rim is copper/brass.
I have two of these, in great vintage used condition.
The rims have some tarnish along the glass portion.
No chips or store cracks to the glass.
Measures 4.5" diameter.