Redfield ESD

[cabcrazy]

I was helping my aunt clean out my grandfathers place today, when we came across all his hunting stuff. She was going to throw it away, so I took it. Inside one of the tubs, were two Redfield ESD. Electronic Sighting Device. One is silver and one matte black. The mounting rings were included. Any one try these before? You like them? Are they worth any money? Both appear new in box. I searched google, they appear to be discontinued, and originally sold for around $200.00