MK mark (probably not Madoline Keeler)

Lidded pot I think by Madoline Keeler, stamped MK.

Her mark in the Yates/Owen book does not look quite like that. Is this a different one? Any idea of the date?

There are several pots with this mark attributed to Madoline Keeler from the 1970s-80s - when she was making planters, apparently. but I’ll have to double check

Another one. I’ve moved it into ID My Pottery while there’s still some doubt. I haven’t found a way to contact the Keelers to check

This one is an earlier piece supposedly by Madoline Keeler; the owner had left a note inside saying it was by Keeler; from Monmouth.
The mark is a bit rougher than on the ones above.

https://pin.it/5ec2tMp

https://pin.it/ZVYaPit

Another pot here; more like a planter which is what she made in the 70s-80s

https://pin.it/5SGnTE6

https://pin.it/3hHHDjz

Apparently the mark is not Madoline Keeler's according to a dealer who asked her about it. Unfortunately her current address is not listed so I can't corroborate that

Edited to add, came across Megan Keeling’s work at Art In Clay, Windsor who has a similar mark but I think she’s too young and the mark isn’t quite the same