According to Smith/Wesson records, the Director's Registered .357 Magnum, is described as: Serial 45768 Reg. No. 1, shipped from the Smith factory and delivered to J. Edgar Hoover in April, 1935. Records reveal it was shipped with 8.75 inch barrel, equipped with a 1/10 inch Patridge front sight...
Since posting this months ago, that particular revolver was taken off gunbroker unsold. I've noticed it's back again and is still unsold after a few rounds of auctions. It's been bid as high as $2500 and not reached its reserve price. It'll be interesting to see if the reserve is ever met or is...