Naive Stoneware Vessel. Unknown marks to base. Any help gratefully received

Dear Forum,

Attached please find 3 pics of a stoneware vessel. Approx 10CM in height, 9CM at its widest circumferance. Has an impressed mark where the numerals "6" and "7" are legible to me but the characters between those 2 numerals aren't clear to my eyes! Any insights or thoughts gratefully received!

Seems to be stamped ‘6or7’

Hi Naomi. Thanks for your help. Agree with you and I’m still drawing a blank! Wonder if the vessels style rings any bells for anyone?

Mark looks like it could be in Cyrillic.

I’m now seeing ‘6dr7’

Thanks Naomi and Potty for your kind replies. Will do some investigating into the mark possibly being “6 or 7”, “6 dr 7” or cyrillic. Still working on whether there are any clues to the possible maker from the stylistic point of view. The incised detail that looks at bit like a seam, the use of glazes and the shape may hold some clues! As always any thoughts or insights gratefully received!

Thanks again for your time and help!

I assume you know it's Raku and in my opinion looks typical for tourist ware.

Hi Potty. Thanks for your kind note. Yes, with regards to it being raku. This along with the nature of form and decoration interested me but stamp on base was new to me, hence my posting.

Thanks again for your time!

Kindest