Another vase by a recently encountered mystery kiln

This octagonal vase is roughly 7.25" high x 3" in diameter and 2" square. It has the same maker's mark and it is also on the top part of the vase, not the bottom, the same as the other vase. Still no clue as to the maker but it helps to have multiple examples. These are just some quick images, cropped to show the shape of the vase and the maker's mark. Though not consistent in shapes, this maker is very consistent in color palate and quality. Starting to lean toward 1950s period for these as they are very geometric in design.

https://www.collectorsweekly.com/stories/288224-japanese-rectangular-vase-with-frog?in=user

The glaze on these pieces is not perfect and they were probably mass produced, but they are hand painted and the way the maker's mark is applied is intriguing to me as I seldom see this done. Their shapes are also uncommon.