For your consideration, here is a Vintage 1970's CCU Central Credit Union of Illinois Acrylic Paperweight with Embedded Coins, dated 1936 - 1971.  It has a diameter of 3 inches and is 1 inch thick.  It has some light wear and scratches on it, mostly on the bottom.  The coins are not uncirculated.  It will be mailed in a box for protection.  Item pictured is the actual item up for sale and comes from a non-smoking household.  (455.20y-.10od)

It is hard to make out the mint marks, but here are the years of the coins:

Dimes:  1966, 1967, 1967

Nickel:  1947