without a doubt, the "best" and specially when one can actually 'document ' it...we've been sitting on an early flatgate that also was chromed, , the "original" box had a sticker on it, stating, that BUT ....the box got "tossed" ( yes, $##*t happens...) and the factory has NO idea, clue whatever as to the finish it was shipped as "records,lost,destroyed...." oh well, it is what it is........
and as they noted and we had said when we saw your pictures, the gun you have is also "chromed"......yep, they did it BOTH ways...interesting..........
as the "story" ( lore) ?? goes, they were trying to do anything to put a finish on some of their guns,that were turning colors (plum) aside from the ones they did for the "wheels" (displays) for the NRA convention, way back when........
that gun may not be the "start" of ANY collection, it is an "entire collection" all on its own....and yes, a "true" family heirloom.............