This type of recessed base was commonly pronounced on wine, champagne or spirits bottles. Possibly done for bottle strengthening and stability. The push-up recess used to be formed by physically pushing upwards in the centre of the base with a tool while the glass was still hot and pliable.Glass objects generally include a wide range of shapes and colours with bottles and jars used for alcohol. This bottle is an example of a specific type of base used in bottle manufacturing.Tall brown glass bottle with recessed base. This bottle has a "push-up" or "kick-up" base. bottle glass push-up-base kick-up-base punt