They come in a Yellow/Green and a Yellow/Black scheme on the can. I'm not sure if there is any difference on the contents within the cans of the two different schemes. From what I've been able to find on the web the only difference is the color of the Blade Cartridge inside, not sure if there is a difference in the blades, both are marked "Injector Twin, TEFLON Coated". Maybe just different years between the Yellow/Green scheme vs the Yellow/Black Scheme. Anyway, I previously had a Yellow/Black can. The other day I picked up, additionally, one of each Yellow/Green and Yellow/Black cans. So I decided to open the less attractive Yellow/Black can of the two. Below is what I started with, and what I found within. Wish I could still use that coupon, maybe in another life time...
I sold a sealed yellow/black on the bay several months back. Always wondered what was inside. Is that a bit of plating starting to corrode on the back edge of the head?
Yes. So much so that the can had a smell inside similar to that of opening a very old book for the first time in decades. Love that smell! No. It's just an imperfection in the way the light was reflecting. I just looked at it and can't find the imperfection in person...
I know what you mean. It would be terribly expensive to do now but about 25-30 years ago I was into vintage (now almost antique!) plastic model kits from the '60s - long before ebay so they were still findable and somewhat affordable. Upon opening a mint box still in cellophane, a petrochemical fragrance would rise from the box of styrene and instantly take me back to 1975, sitting in my little closet with a gooseneck lamp, a leaking tube of citrus "safety" glue and a half-dozen open bottles of Testors enamel. That hydrocarbon brew probably malformed my developing brain but it was fun times. It even has a name for guys who collect old Aurora brand models: auroma. I've tried getting various kids interested in even the concept of assembling a kit, much less putting one together. Almost all of them do not get the point and can't be bothered. ...apologies for the old man memories there...