Tell you a good one - show versus "factory" chrome -
A friend of mine bought a 4400 mile '68 SS coupe a few years ago - car was featured in one of the Camaro books (Hooper's?) for the frame markings, original paint and date codes - this car smelled new on the inside, and we even conjectured the original air was in the tires. Beautiful car, fanatical owner, decided he didn't like the original factory "flash" chrome on the bumpers, so he removed them and the guards and had a local (national reputation) chrome shop rechrome them (about $500.00 worth many years ago) in show chrome - when he got to the point of installation, when he hung the front guards on the bumper to bolt them up, the weight of the guards dimpled the chrome (copper layer on show chrome is very thick, very soft). Being extremely upset, the owner sent them back three times, and only accepted them after all the copper was buffed off, and the chrome was plated over the nickel coat without copper layers to emulate the "factory" flash coat. True story - I transported the bumpers back and forth to the shop myself.
The down side to "factory" chrome when you are plating used parts - you can't use copper (or very much copper), otherwise you'll see the difference right off, plus you'll usually have pits that you can't buff out (no copper to fill/level them). BTW, when we dropped the rear bumper on this car, the rear bumper was stamped inside the bumper with a date code, roughly 3/4" stamped letters - I had never seen that on any bumper before, maybe because of mileage or age. Just my opinion -