Pot ID Help?

Hello everyone:) It's been awhile since I had some time to post on here. But with everything going on now with the COVID I had some time to clean up my bonsai trees and go thru some old pots. I came across this little guy and don't recognize the makers mark. Any help would be much appreciated. Thanks Abe

I can't help with the pottery ID, but it is a pretty little pot and it was most likely slip cast based upon the groove around the bottom on the inside which corresponds to the ridge on the bottom on the outside.

The go-to pot ID is bonsai pot identification on Facebook.
\It's probably on this site: https://japanesebonsaipots.net/chop-and-signature-resource/