Subject:Re: Chinese blue and white character mark dating help
Posted By: Martin Michels Tue, Sep 05, 2017
I can only help you with the 6 character mark on the 2nd picture.
It's saying: Hogyoku-en 宝玉園 (Jewel Garden) Senpachi 仙八 Sei 製 (Made by Senpachi), Google translator.
This mark is also in the book of Lord James Bowes: Japanese marks and seals (1882) where he translates it as: Ho-gioku-yen Sen-pachi seisu.
See this link: http://db.nichibun.ac.jp/en/d/GAI/info/GL008/item/421/?p=71
Which also means, that this mark is from before 1882 !