HP-35S Display Issue

[RedLionNJ]

Hi,

I have an HP-35S where the display is not showing completely. I'd describe it as some rows and some columns are not showing up (see image). Additionally, some of the keys don't seem to register with a single press (need a longer press or more force).

Is there anyone/anywhere who might consider servicing this? References would be helpful, of course.

   

I'm located in New Jersey, USA.