Nickel or Chrome. Metallurgy 101
Wednesday, December 27th, 2017OK, I’m a fraud. I know nothing about metallurgy but if you look at enough pickup covers and bridges, you get pretty good at telling nickel from chrome. I’ve covered this in an earlier post but I keep getting emails asking about this, so I’ll do another. And it lets me show a photo of this incredible 62 I just got with shiny nickel hardware.
Nothing gives away a changed part like being the wrong metal. Any time somebody wants to sell you a 64 with chrome pickup covers, walk away. There weren’t any. But, how the heck do you tell the difference, especially from a photo?
First, there’s nothing wrong with chrome. It’s a very nice looking metal and it doesn’t tarnish or discolor over time. It’s a great choice for bathroom fixtures and the kitchen faucet. It isn’t bad looking on guitars either but it’s a little boring (I could have said a little dull but chrome never gets dull). Gibson switched from nickel plated parts on 335’s to chrome plated parts in 1965, phasing it in slowly over the course of the year. They weren’t being subtle, they were simply using up the parts they had in stock. Gibson didn’t think anybody could tell the difference between nickel and chrome because they mixed the parts in 65 with no regard whatever for how they would age. They generally made both pickup covers out of the same metal, so at least they had an inkling that it might be noticed by some astute metallurgist, like me. But they mixed bridges, tailpieces, pickguard brackets-everything metal except the tuners which stayed nickel through the 60’s. I’m told by guys who worked at Gibson that there were complaints from customers about the metal tarnishing and that’s why they made the change. I wonder if one was cheaper than the other?
So, how does one tell the difference. Well, there’s the easy way and the hard way and it has nothing to do with how good you are at telling the difference. The easy way is if it’s dull and tarnished, it’s nickel. Chrome can get pretty crapped up with dirt and sweat but a wipe with a damp cloth will bring it back to its factory shine. You can bring back nickel too but it will take some elbow grease and metal polish which, by the way, I don’t recommend. Results are pretty variable and it ends up looking like somebody tried to clean the nickel. Ever try to clean an old coin? It never looks right. Don’t clean the nickel. Then there’s the hard way. supposing the nickel is brand new and as shiny as a new dime? Then you need to call on a bit of very old technology-your brain. Your brain can determine the difference between the reflected color of chrome and the reflected color of nickel. It takes a little practice and it’s not so easy without having both metals in the same photo. A photograph is as variable color wise as the two metals. I should know, my job for about a million years was a a film and video colorist. That’s the guy who makes sure all the shots in a film match. It’s really annoying when Scarlett Johannssen’s sweater is red in the wide shot and maroon in the close up. Yes, somebody actually has to fix that. It’s a real job.
It’s hard but it’s simple. Huh? Chrome reflects blue and shiny nickel reflects green. If you see them next to each other, it should be sort of clear unless you are even the slightest bit color blind in which case, ask somebody. It’s not a true blue or a true green-it’s a bluish cast on the chrome and a greenish cast on the nickel. See if you can get your hands on a nickel pickup cover and a chrome one. Then stare at them side by side. You’ll get it. It doesn’t take an expert in metallurgy, just a working brain.