Apple power macintosh 6100 keyboard?
I've looked on Amazon (both US and UK), and while there's nothing in the UK store, there are some available from the US store. There are also plenty on Ebay (both UK and US). You could also try brick-and-mortar secondhand stores and even thrift stores.
Goftrey - if you have no luck on ebay (previous poster - seems to think there's a few on ebay here in the UK) drop me a pm or post on here - it's possible I might have one up in the loft and I can go up there and investigate...
Ok, I'll come back to you tomorrow (I'll try and get up there tonight). No guarantees though - I do know I've got a couple of old Macs up there and if there's a spare keyboard (I think I might have had an old Macally at some point in addition to the Apple supplied ones) you can have it. You'd need to cough up for the postage but that's all.
I'll come back to you. Have you got an email address I can drop you a line to you directly?
Just out of curiosity, what do you want it for, anyway?