Alexandra bowls were made from 1939 to 1975 in green, blue. pink and possibly amber and was sold as a dish for sweets. There are four versions: divided, undivided, eight-rose and 10-rose, with frosted and unfrosted as further options. The green ones can be further divided: if it contains uranium (i.e., it fluoresces bright green under UV), it's pre 1946.
Bagley used two methods of frosting: acid and sand blasting - both pre 1946. The sand option gave a coarser finish and was generally back side only.
Shown above is a pink sand-blasted oneand a green one.