two ruby bowls - presumably identical, although one is so wonky it must have been a seconds I think. Looks to match Keith's example in shape, and could be wrong by believe it's Davidson's No. 21 pattern bowl, showing (as blue) in the top picture on page 81 of the Stewart's book 'DAVIDSON GLASS - a history'. The book shows this bowl to have been part of a trio which also included a stand and frog.
In the book picture you can see the regular rim decoration as described by Keith, and does appear to have been a very definite and intended form of decoration, although get a feeling that there was some slight hit and miss in the strength of appearance.
One of my examples shows the pattern clearly - the other has this only weakly, and both have the W or M, in relief on the underside of the foot. Seem to remember we discussed for months, which letter this was intended to be - although don't remember whether it was ever resolved.
Does yours have this mark on the base Keith?
The size of these red examples matches that of Keith's bowl.
Don't think Anne's piece is related - partly due to the shape, and partly due to the description of the pontil depression.