A person recently asked on www.tymag.com
where the Massey tractors were made. He provided a link from TractorData.com what indicated some of the tractors. However, some of the information didn't seem to be exactly correct and other info is missing (55, 555).
I would guess you are the most knowledgeable about the factories and what was made where!! Any thing you could share to enlighten some of us?