There seems to be very little research on this type of glass in England. Is the term "common glass" still in usage?
Your bowl does mimic pattern moulded lead glass examples from the late 18th c.[usually diamond moulded] in size and basic shape . Although the flaring rim does not seem to be the norm. Most glass collections formed in America, c. 1930-1950 have examples in blue lead glass, as they were thought to be American.
The one book I have that has some information on this type of glass in England has some photo's of pattern moulded hollow ware in " common glass' drawn from the Seddon glass Collection. Nothing in amber. Your attribution as to date, etc. is roughly correct in my opinion.
Extensive scholarship done on American versions from the first half of the 19th c. Made in bottle and window glass factories in the mid-west. most notably in Ohio [state].Widely practiced by competent immigrant English glass blowers.