This is an old post, preserved for reference.
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I've been asked a few times recently about the IBM Model M keyboard I use, so here are some photos I took when I restored it. I use this daily as my main keyboard, seen here with my other favourite and slightly out of date input device, the Microsoft Wheel Mouse Optical. I'd be very reluctant to change either of those.
The donor is now also back up and running, I ordered the missing keys and cable from a website in the US (clickykeyboards.com)