Yes, that's right. 7/8" stem clamp with sleeved 1" steerer. Came to me minus the original stem and fitted with a 1 1/8" stem, double shimmed to fit. I've managed to source a 1" ahead stem so at least I'll only need to shim from 7/8 to 1". Hoping to get it built up this weekend having spent the last couple of days with polish and touch-up paint.
Paint condition overall was not too bad apart from the dropouts and peppered downtube. Hopefully a bit more T-cutting will blend in my attempts to colour-match