Help Identifying mark on Tenmoku Lidded casserole

Kia ora,
Going through some of my Late Grandmother’s nz studio pottery, and haven’t been able To identify a couple of pieces. She has some Len Castle, Peter Stitchbury, and a lot of Simon Englehard pieces…

The marks I can’t identify are on this lidded casserole in tenmoku with a nice blue liner glaze:


And this large stoneware bowl that may be salt fired… 
Thanks for any help!