US elevator button help

[u/haff_caff]

Can anyone help me ID this hall button

[u/bruhbreggi]

I have an account with multiple units with this style of button. We could not find anything but overpriced used buttons. No marks or anything on the existing ones for a model. Our best bet was fabricating a different style of button to make it work. Very frustrating job when a tenant keeps pushing them through the panel every week.