Here is a pair of insulators from Japan marked with the "Scented Orchid" logo and KORAN -- These are from Fukagawa Porcelain or 'Koransha' (The Company of the Scented Orchid):

U-1371 inkstamped with the orchid logo in good condition

Large strain inkstamped with KORAN and the orchid logo - few wire groove chips

Take the pair for $40 plus postage