lukas, 8 months ago

It’s the ISO enter key with stabilizer judging by that image.

But I found an interesting reference that suggests that everything here works as intended.

https://sharktastica.co.uk/resources/images/model_ms/shark_1389152_ibm.jpg

Image 1: 122-key IBM Model M

This layout matches mine with the following exceptions:

• Additional keys from the 122-key variant.
• I’ve got a two unit high numpad plus key instead of two distinct keys.
• My layout is German QWERTZ.

https://upload.wikimedia.org/wikipedia/commons/6/6b/Model_M_inside.jpg

Image 2: 122-key IBM Model M internal assembly

If you look at the placement of stabilizer inserts, then this matches my IBM Model M. Same exceptions apply. I couldn’t determine whether the 122-key IBM Model M enter key also uses a stabilizer metal bar, but it’s suspiciously similar to my layout nonetheless.