10K/Enameled Independent Order Of Vikings, IOV, Pin

Old 10K Gold Independent Order of Vikings enameled pin. Marked on back “10K” and also has a stamped diamond shape with a mark inside that is not clear what it is. Measures appx ¼” wide and a bit over ¼” tall. The Viking’s horns are white with black bases, his eyes and helmet are red, and I find no damage, chips, or wear on the pin. Has a solid screw-back mount marked “CIRO”. This item will also be on display at Lincoln Antique Mall, Lincoln Mo. So please check with me regarding availability if interested