Antique round tea cup saucer 5 sets Qing Dynasty/1616-1911CE

This is an ancient tin circular teacup from the Qing dynasty, from a tea house that specializes in green tea. 5 customers.
High-quality, heavy-handed tin is used. A small circular teacup that holds a small teacup beautifully.
How about using it as a daily tea utensil?