Grapes were a popular theme among Victorian buttons. Grapes often represented Christ the with fruit & leaves symbolizing the Christian faith. Grapes themselves represented the sacrificial blood of Christ. The leaves stood for rebirth. The vines a representation of bounty.
Grapes are one of the earliest cultivated crops & the fruit & their vines are sacred to Bacchus, the Roman god of wine. As such, these vines take on a jovial symbolism, representing celebration & abundance.
These are just a few examples of antique buttons with a grape motif.
A Bacchante or Maenad, female followers Bacchus, the god of wine.
Carved mother-of-pearl over abalone.
Another great haul of buttons still on their original cards. or just barely still on the card as is the case in the last photo. Top buttons are much more detailed than I'd originally noticed & have an early Art Nouveau floral design over a green background. Gray buttons have a tiny butterfly in the design. bottom card of twinkle buttons with tinting.