Seeking to buy early 4004, 8008 and 8080

I'm seeking early Intel 4004, 8008 and 8080 chips. The earliest runs had no date codes, so I'd like specimens with no date codes which will at least confirm they are from the 1971-1974 timeframe (Intel began stamping chips with date codes in 1974). This is for a project I'm working on, and I am only interested in a sale (sorry, no trades). If you want me to read your message, please send replies directly to me. Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]