Sir George Thurston cruiser designs Type A,B,C

These are with any evidence post Washington (1929 Vickers designs) treaty heavy (8 in. main guns, even if referred as “lights cruiser” in the drawings) cruisers designs, type C shows a peculiar “Nelson style” arrangement. All of them comply on paper to the 10.000 tons limit.

I did not preserved the source, so please give me an hint to update the reference to these designs.