Need Help, What Are these?

You could probably sell those on ebay for a pretty penny.

Mind you, you could keep them and sell them in 20 years and make a prettier penny.
Likely offset printing plates or the negatives for burning the plate that mount on the printer drum, there should be a negatives & plate for each color ink used, if I recall correctly. It's been a long time.
well i do believe they are relatively old as it is, as the house were they came from the man, god bless, was 90 years old. Does anybody know if they are sort after or worth anything as i am not a budding photograper, and the do look original.

Many Thanks

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