As all #45 Veeder-Root computers are the same, (invented in the early 30s it was used into the 60s) just get one that is loose and put it in your pump. Veeder-Root computers were only guaranteed for 22 months, so the chances of the computers you have being the the ones the that were in the pump when it was new are very slim. When a computer went bad, the station owner called the rapair man, he came out, pulled out the bad computer and put in a rebuilt one. He then rebuilt the old one for the next job. Some computers had white wheels and some had black, but years ago no one cared what was in the pump, as long as it worked.
Author, 1st & 2nd editions of Gas Pump ID book, 3rd edition is now available at
www.gaspumpbible.comAir Meter ID book also available