Thanks Ohio. Funny thing is I was just about to pose the question as "Tiffin or Heisey," but at the last moment subbed in Cambridge, just because I learned about their square line. I think I did o.k. on this investment, although I do note that examples that fetch healthy prices at auction seem to be decorated and not plain. No matter, it's a "keeper" for the collection. (Wish I could go back in and modify title of my original posting to assist future information seekers).