This mark was used by A.A. Importing Co. of St. Louis, Missouri, USA. The items themselves were of Japanese origin. This fact should actually be far better known, given that this mark was featured in multiple publications on reproduction marks.
Marks
M070505a
Crossed flowers flanked by "A & C", all above "BAVARIA".
M070505b
Crossed flowers flanked by "A & C", all above "BAVARIA" with A.A. Imports sticker.