Any insulator from Koransha is extremely scarce to locate and get from Japan, especially with colored glazing. During my trip to Japan, the only Koranshas I saw were either all white or white with the orange band and even getting those are near impossible unless you have contacts. This small insulator is a 1936 dated lag type with green Koransha logo underglaze inked on top ear. These were used as our lag types are used here for house, barn and building applications. This one is V NM having one small ridge bump from being mint. Very nice piece for your foreign porcelain collection. Please note that these insulators are VERY hard to get and will not be going on sale. It took me 4 years to locate these and the 1 for my collection. $90 shipped USA/CANADA.Other countries I'll equally assist with shipping.