This isn't a particularly
cheap deal, but it is unusual—and maybe someone wants these lesser-known (and quite fun, IMHO) keys enough to be interested:
IBM Model M 101 Keyboard 1391401 16DEC1987 CLICKEY BUCKLING SPRING PS2 W CABLEIt's a standard p/n 1391401, but for some reason it has the special air-reservation keys designed for p/n 1393464. It would've work the same, of course—so I'm guessing it
was used in a travel agency, and maybe someone transferred the keys to it from a '3464 that went toes-up.
'3464s also occasionally
appear with standard keys. Let's face it: This vintage-keeb stuff can be a thorny, disorienting jungle of a hobby. We're up to the task, though, given sufficient coffee. I'm just saying.