Having dispensed with my assumption that only Strathearn used the cream colour let us see if we can crush the other big assumption too.
These things need to be done as assumptions lead to errors. I have never published this assumption as a fact because it was and still is an an assumption.
During the eighties and early nineties I owned about 8 or 900 pieces of Monart, I also visited and handled 50 plus collections so probably in total somewhere between 2 and 4 thousand pieces. One of things I was looking for was a correaltion between post war labelled pieces and features of the glass.
I found one, the highly polished base ring when found on a labelled piece only ever occured on a post war label. Knowing that Paul had higher standards than Paul it was eas to make the assumption that he introduced the idea of finishing the base to a better standard than his father had allowed. You do get ground and polished rings on pre-war labelled pieces but it was only ground sufficiently to resolve any instability in the piece. On Ware labelled pieces, slightly ground outer rings did occur but I only ever saw a couple and there was doubt that the labels had not been added later.
To dispel the assumption check through your collections and post a picture of any pre-war labelled pieces with highly finished bases.
Perhaps we can even confirm this and declare it as a fact.
Whatever the result, I wil be quite happy