If your truck is Canadian built, you can pay to have a vintage report pulled.
I did this for my 59 GMC and learned some interesting facts. For example, in 1959, in Canada, only 2697 GMC trucks were built with a short wheel base. I also learned the date (February 12, 1959) the truck was shipped to Vikar Motors in Tisdale Saskatchewan.
Check out this link
Vintage Report to learn more about where to get this information if you're interested in getting a report for your Apache.
Let us know your results if you do get the report?