Plate viewer

[ahung at ASRR.ARSUSDA.GOV]

Dear Friends:

I have to read and photograph immunodiffusion plates.  One of my 
colleagues has one viewer with magnifier which works very well.  It was 
made by Hyperion of Miami.  But they don't manufacture it anymore and I 
can't find this type of viewer in any catalogs I have.  Does anyone know 
where I can buy such viewer?

Thank you in advance for your help.

Have a nice day!

Akey :)