Any info on this broadcast keyboard?

[kindflayer]

I was cleaning out an old TV station today when I found this. Its a Chyron ACG dated 20-05-89. I can't seem to find much information online about the keyboard as well as the switches. They have individual rubber domes that sit on top of the stem and in between the key. Here's a couple of pictures:

https://imgur.com/a/RAH8j2H

[Myoth]

the pictures are broken for me

EDIT : you fixed it, they seem to be Keytronic's tactile foam and foil

[kindflayer]

Posted an imgur link instead.

[Myoth]

and I edited my post as well x)

[kindflayer]

Thanks for the quick reply! The tactility on them are pretty damn weak to tell the truth.