At a thrift shop, I recently purchased a KB-M102 keyboard, made in Taiwan.
It is unusual in the following way:
it is a 102-key keyboard with a layout organized this way:
The backspace key is like a 101-key keyboard.
The Enter key is like the one on an 84-key AT keyboard.
Both Alt keys are shoved outwards to touch the Ctrl keys on their side of the keyboard, and an extra key is inserted between Alt and the spacebar.
I think that a picture of a Russian keyboard with this kind of layout was posted here recently, but I was not able to find it quickly.
The extra key on the right side is the |\ key.
The one on the left is labelled "Macro". I was hoping that just possibly the keyboard might have internal programmability, a little bit like a poor man's Northgate Omnikey.
Instead, it just emits its own special scan code. But instead of a useless scan code... the key serves as the 102nd key of the international keyboard. So this is a keyboard with all the keys of an ISO keyboard, but arranged in a convenient way for typing by people who are used to the ANSI arrangement.
This keyboard will be very handy when I wish to take advantage of the capabilities of Windows to allow me to type words from other languages.