https://www.ebay.com/itm/ONE-1-RITZ-BLUE-GOLF-BALL-4-SHERBET-STEM-7643-MORGANTOWN-ELEGANT-DEPRESSION/151457841173?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Dcb6dbbbf840f4024a0ae23dd5827cfaf%26pid%3D100338%26rk%3D20%26rkt%3D28%26sd%3D372102793963&_trksid=p2141725.c100338.m3726

Some advertise these as Bohemian but that is simply a selling tactic !! They are not in that style in my opinion !! However since they are unmarked,, no real way to know !! Could be made here in the states or anywhere !!
Above is a link to Morgantown Glass similar sherbet glasses !! You might match the pattern on the ball and size to yours and see if it matches !! Pics here are not close enough for me to tell !! They were in operation until the 70`s !!