Ray, we had all that mechanical spec data for every light bulb (incandescent and LED) in the known universe when I was working. This is the closest I could find in a short search and it might help you. I searched on "automotive incandescent bulb dimension specs" (sorry that it's fuzzy-looking):
http://www.autolumination.com/...inder_T10_wedge.html
Also, I found a site in Oz that has license plate lights that might help for bulb type designation in the Great Green North: