old pink milk glass cup, Victorian vintage antique shaving mug?

Vintage pink milk glass cup or mug, unmarked. We're not sure of the maker, but it looks like a mass produced piece, cheaply made.

We're thinking it's probably old enough to go back to the time when pink was for boys and blue the color for girls.

In which case it was be fine for a man of any age, and might be a child's cup or a man's shaving mug! Or it would be fine for coffee, today.

It's clean and nice without wear, and measures about 3 1/2" tall. There's a couple of charcoal grey 'slag' marks, pretty typical of dimestore glass pieces in the old days.