Card of Vintage Victorian Buttons 1800s, 24 dark blue, French Boutons Superieure

ERA: True vintage item from the 1800s
MEASUREMENTS: the card is 3-1/2 x 5-1/2 inches with 1/2 inch buttons
Original antique paper card of buttons stitched to it. The buttons are a very dark blue. Unknown material, maybe a vegetable or early plastic.
CONDITION: The card and buttons are in very good condition. The card is very aged and has a split near the middle.
The finish on the buttons is dull and has some light wear from years of storage.