Mark: He Yu - "He" Jade. Hamada Shoji (1894-1978) Hamada Shoji was a renowned craftsman and representative figure in modern Japanese pottery. The following guide will help you in the identification valuable pottery marks: The year 1872 marked the beginning of manufacturing at Weller Pottery, which continued until 1948. Pottery identification has facets clay color, glaze, shape and decoration are a few but if you're lucky, the potter or pottery marked the item. The name Weller is spelled out in the image using a typeface that has a lot of curves in it. It could be helpful especially as german pottery marks identification guide, as a lot of marks are from German potters. Crown marks, typically found on the bottom of fine china items, are clues that help you determine the age and the manufacturer of each piece, as well as its country of origin. antique blue and white tea cups and saucers. Researchers have developed ways to increase the accuracy and dependability of the radiocarbon dating method. . [CDATA[// >