[The-Cardfather]

You seem to have a lot of information here, and I'm certainly no expert regarding Topps printing locations.

However, I grew up in Brooklyn, NY and had a distant (3rd?) cousin who worked at the Topps plant in Brooklyn in the 1960s. I had a conversation with him about 20 years ago, and I remember him telling me that they used to manufacture (print) the baseball cards at the Brooklyn plant. He also said that after the company bought a plant in Durea, PA, in 1968 or so; the Brooklyn plant was gradually phased out after a few years.

According to him, the product manufactured at the Brooklyn plant was of very little value and if anyone wanted to take a small quantity home (of anything) for their kids; it was acceptable. His point was that if he took a small quantity home of the baseball stars of the day (Mantle, Mays, Koufax, etc.) a couple of times a week, he would have been a very rich man. But who knew?

I don't know if any of this helps, but I thought that I would pass it along.