Discovery Series

A friend of mine purchased a lab about 20 years ago after it went bankrupt.

He found 60 -80 Marilyn Monroe Discovery Series Cibachromes.
They have been stored now over 20 years in dark storage and has asked me
what I think the value of them are.
The original prints would have sold for around 2.5 k each. These are run offs of the exact same pieces and are in good shape.
attached is the series I am talking about

I have no idea of what they are worth and wondering if anyone has any ideas or leads to people who may know.

Any chance Stephen Bulger or the Corkin Gallery could provide some leads on valuation?

Wow what a coincidence...my brother is restoring a drone engine, like the one in the picture. He showed me that same image a few months ago as part of his research on the engine.

Since it is Marilyn Monroe and the run offs are about 20 years old, each may cost up to.5K to 1 K. This is just my estimate that I calculated.