Marked Sterling. Notice there is still years of oxidation, yet no pitting, what you see is crevices seen when a piece is produced per lost wax method.
To earn free USPS/Priority/Ins/Tracking please mail your $74 USA check or USPS Money order to: Mimi Dee Artwear - POB 458 - Methuen, MA 01844
(PS: same address since the mid 80’s!)