Andy (and others)
here is an intro to Soviet Aviation factories.
sadly, it is dated 1921 to 1941 but we can hope there will be a follow-on document.
I'll ask.
http://www2.warwick.ac.uk/fac/soc/ec...22fulltext.pdf
Gabor, it seems you are right Zavod 381 did build La-5's from April 1943