Subject:Re: Help needed for Mark on plate
Posted By: Bill H Sat, Jul 08, 2017
The mark, shown upside-down on a slant, reads from the top right down when flipped as "肥前 (Hizen, a former Province now called Saga) 有田 (Arita, the historic porcelain-making center) and (城岩, Shiroiwa, a surname and porcelain brand name)"
The link below, to a Chinese discussion forum, has comments on another Shiroiwa brand dish, which is not very old. A translation of the evaluation follows:
"Expert opinion (because of the peculiarity of the collection and the limitations of the photos, the identification results are for reference only!)
Assessor Number: 2436
Appraisal Time: 2016/12/15 07:37:20
Age: 50-60 years
Collectible Value: Value is not high
Opinion reference: This large blue and white and purple chicken motif Bowl by a Japanese producer has a certain old-fashioned air, it dates to the 1950-1960 era of the last century. The mouth has damage, diminishing price."
I found some museum information at another website, pasted below, which shows Shiroiwa dishes are displayed amongst modern wares.
URL Title :Chinese Discussion Forum