Edie
Right, so — the yellowing. I've been sorting through junk in the flat above the shop and I think there's exactly four kinds.
One: the Nintendo cream, goes honey-yellow, even, kind of handsome actually. Two: the piano-key white, goes patchy and grey like old teeth. Three: the transparent stuff, computer cases from the nineties, goes amber like a cigarette filter. Four: the stuff that doesn't yellow at all, just gets brittle and snaps, usually the cheap black.
Four. I'm fairly sure that's it.