"For at least a hundred years, anglers have tried to remove or mask the smell of human scent and man-made chemicals, but it wasn't until the late 1960s and early 1970s that inventors began to take the subject seriously. In the span of six years, no less than three separate "Fisherman's Soaps" were granted patents, as far as I know the only such patents granted in American history. So…which of these three belongs to your "Soap-A-Lure?" After checking the patents, only John Paul Noordam Jr.'s patent not only removes the fish smell, but also applies an attractant to the hands. Noordam was granted Patent #3,666,669 on May 13, 1972, and as your bar is marked "Patent Pending" I would surmise it was probably sold in 1970 or 1971, while the patent was being reviewed. Since so few have survived intact, I would say your soap is worth $10-$20. To view some other angler's soaps from the back pages of Field & Stream, click here."