pair old vintage Artcraft 12k gold bifocal spectacles w/case

Pair of old vintage gold framed bifocal spectacles with a brown leatherette covered steel case These have curved cable temple earpieces and are marked "Artcraft 1/10-12K GF" (12 karat - gold filled) on the bridge. These spectacles measure about 4 1/2" across and about 4" long on the temples.