Several makers produced versions of what was, when first made by N. Waterman, called a #11 N.E.S. (New England Style) roll pan. All of the same basic design and configuration, the only differences seem to be minor and confined to handles, raised or incised markings, and, of course, trademarks if applied. Many, like this one, are unmarked. Early Griswolds only have the p/n 950, but they can be easily IDed by it. This one "could" be a copy made from a Griswold pan modified and used as a pattern.