Goodyear did sell breast pumps with their name on the box. I found the glass part of one this summer. Mine has the same flared opening but is 4" tall and has a bulb on the side to catch the liquid. I think they just manufactured the rubber squeeze bulb and not the glass part and you are probally on the right track. Is there a hole going through the center? If not Epackage might of solved it for you.
Wolverine.
Thanks for the replys, yes there is a hole thru the center, I wasn't sure cause most pumps I've seen and dug had a separate part in the glass to catch fluid?
"Goodyear's Breast Pump: Glass pump and its packaging (paper). GOODYEAR S/ BREAST PUMP/ NEW YORK. The pump is approximately 8 inches, the packaging approximately 8 3/4 inches. " From.