|1987.0487.175||Texas Instruments Collection||Object|
|clad metal quarter Coin display
TI number: G00181
Displays a quarter from the initial coinage transaction, November 1, 1965. The clad metal system used was developed and produced by TI's M & C Attleboro plant.
The outer layers of the material are a copper-nickel alloy; the center is copper. These layers are bound together at the molecular level. The material was initially supplied to the U.S. Mint for dimes and quarters and later used for half dollars and dollars, resulting in a major savings in silver. An Interesting requirement for the material was that the coins had to work in the vending machines and money changers then in use.
|Texas Instruments (Bill George, Ed Vetter.)