IBM Model M122 Industrial Black Badge

[karlmartin95]

Hi! As you might know, few weeks ago I purchased a big loot of M122 keyboards (17 pieces to be exactly) and within the loot a rare Model M122 came:



The keyboard was pretty dusty but after cleaning it, you can see the black badge:



Here more photos about its internals and back info:







I did a little of research and I found that the keyboard is a common M122 Spanish variant and the badge could be from the MIDI IBM Music Feature Card:



The rarest thing about this is that, that midi sound card is very rare here in Argentina and also, the keyboard came in a loot from probably, a bank that used these keyboards with the corresponding terminals.

I really don't know more, all help will be appreciated!