Ghostrider, the Optimus is described in Carder's "Side by Sides of the World": Should be a sidelock. The one mentioned in Carder's book was engraved by A. Muffolini. Described as "very ornate". Pete's gun (my old gun), the Eros Grade, is a nicely engraved scalloped boxlock. Interesting that the Optimus mentioned by Carder dates to 1972, as does my/Pete's Eros.