Pilgrim Glass ship bookends

These are 6.5" wide x 6" high x 2" deep. I've had had these for years and wanted to show them for some time, but just wasn't certain who made them. Many attribute them to Blenko, but I searched all available Blenko catalogs and they are not shown in any of them. There are some bookends in these catalogs in the late 1980s and late 1990s that are the same style, but different themed, golfers, etc. Finally, today I located images of these bearing the Pilgrim Glass label. They are really heavy glass. I would not want to drop one on my foot!