Just read this and remembered your post. Which is a monumental task that I even remembered! lol
Bogard Marbles, C.E. Bogard & Sons, The Bogard Co. Produced in Cairo, Nutter Farm Road, and Reno Ohio. On Page 48 of the American Machine Made Marbles book.
Says they made a limited amount of Pink transparents, but it was hard to perfect the color and didn't sell great. Says they got the glass from Federal Glass Co.
Very cool, eh? Opps, my Michigan is showing! haha
Gary