[Classical age mosaic for "Jonah and the Whale"(?) above]
"This [Powder Horn engraving] is incidentally a design of Classical origin reproduced during the Cassical revival which eventually went all the wa ino Neoclassicism. The original design for this is Ancient Greek-BUT any Indian East of the Mississippi would ave recognised it instantly as a representation of The Great Horned Serpent. This is actually very good and done in a naiive style that is similar to some skrimshaw work. The "X-Ray" showing of the heart IS an Indian element which goes back to Rock Art and the creature would ordinarily have two forefins at about the level of the heart." [Reply by Dale Drinnon to Scott's post on Facebook]
Scott Mardis subsequently added this pasteup of his own:
