Eleven of these numbers were published by Kent Singer and Ed Ueberall on p 623 of NAWCC Bulletin 340 and a twelth example was listed in Bulletin 341. Additional info was gotten from Bulletin 351 pp494-499, an article by Harold Visser and Clint Geller. Where I was able to document an earlier source, I did so.
The remainders came from postings on the internet attributed to the various individuals. PI is shorthand for Roy Ehrhardt's Price Incicator and is preceded by the year.
NAWCC disc and pics
Howard Blackwell Records
Serial Mvmt Dial Source
226201 ORC 76 PI
226210 ORC Clint Geller
226214 BLE BLE Bulletin 341
226221 RRS Bulletin 351
307401 BLE BLE Jeff Hess
307402 Visser/Blackwell
307409 Visser/Blackwell
307430 BLE BLE Bulletin 340
307434 BLE BLE Bulletin 340
307436 BLE BLE Jones/Horan
307442 ORC ORC Jones/Horan
307456 BLE 78 PI
307473 BLE BLE Lindell Riddle
307488 ORC ORC Bulletin 340
307499 BLE Jones/Horan
308102 BLE BLE Bulletin 340
308119 ORC ORC Chap 174
308121 ORC Don King
308122 ORC ORC Bulletin 340
308130 ORC ORC Bulletin 340
308136 BLE BLE Don King
308146 BLE ORC 79 PI
308449 BLE BLE 79 PI