Are the gold-colored discs buttons sewn to the edge of the apparel, put through buttonholes in the edge of the amice?
Yes. That way the amice can be easily laundered.
Yes, the apparel has the buttons attached to it while the amice has the button holes. If you ever see an amice with button holes, you know it was made for the option of apparel.The amice with apparel is put on like a hood, and after the chasuble has been put on, it is then put down in the back and adjusted.