I've been working on a centralized table with the production costs of various WW2 tanks. I've managed to gather data on US, British and German tanks. The latest version is here.

Can anybody help me verify and/or bring in new data? So far I've gotten my hands on 4 sources, that for the most part check out.

The biggest issue on this guide is that I am uncertain of the exact dates of those prices. The issue of variation in exchange rates is also a problem.