Help! Looking for an old PC keyboard.

[ivelz3]

Hello!
I'm looking for one keyboard, but I don't know the model and manufacturer so maybe someone can help me. So it is a standard mechanical keyboard for a PC XT/AT computer, made of metal, created before 1988. AT slot, the keys were rounded along the edges and quite shallow and close to each other. Pressing F10 or F12 gave the keys a sound (beep).
Thank you for all your help!

[ksgfiaft]

it sounds like it might be the IBM Model F

[Findecanor]

the keys were rounded along the edges and quite shallow and close to each other.

Rounded how?
Is it in any way similar to this Siemens keyboard?

[ivelz3]

it sounds like it might be the IBM Model F

It is not IBM keyboard, As I recall, it could be Cherry.

[ivelz3]

the keys were rounded along the edges and quite shallow and close to each other.

Rounded how?
Is it in any way similar to this Siemens keyboard?

Thank you , but the keys are just slightly rounded at the edges, they are not round and are quite shallow.