Dang! What's with the run of want ads for them? I want one too. I'm considering giving up my 86 GN for the right car. 68-69 GS convertible (preferably 400, but may consider 350) May also consider a 67.
'71 and '72 the GS 350 was available as a ragtop. I guess to be more specific the GS package became one option where the buyer chose GS coupe or GS convertible,then chose 350 or 455. In prior years each was its own model with a specific VIN. There was no VIN prefix for GS350 convertible in '68-'70. (And all the '67 GS340s were post coupes). Patrick