From reading, I believe this is a turn-mold Champagne style bottle with a push-up base, which has a mamelon. It is 29 cm high and quite heavy. However in pictures I usually see the mouth is beveled and the ring more rounded than this one. I'm wondering if it can be dated more precisely than just late 19th/early 20th century. Any help appreciated! with concentric rings (you can feel them but hard to see in the pictures) and no evidence of side seams.