Originally Posted by RapidRobert

Here's a pic of a hologram of a '72 Campy derailleur. First hologram I made and sold, to one of the owners of Wheelsmiths Bike Shop in Palo Alto, CA in '84. The derailleur is still in use on the '82 Gordon framed bike I've used since then for riding around Silicon Valley. I sold a few hundred of the 4x5" glass holograms throughout the '80s.