Fyi... Saw this listed as a new part available on the Y.O. website YO70GSBNP Rear bumper nameplate for 1970 Buick GS models. $189.00
Boy that is the same price as the one they say never got past bad protos. Someone needs to call and verify that it is not the same one advertised for several years by mistake.
My reproduction 70 Buick Bumper Plate project is coming along ,it will happen. The mold is very expensive! I will keep you posted