Plate. Persian, Sasanian, A.D. 225–630
Dimensions: 4.8 cm (1 7/8 in.)
Medium or Technique: Silver-gilt.
© The Museum of Fine Arts, Boston.
The original caption reads:
Inside carved in relief and gilded with designs showing the Moon-god, Mah, within a crescent moon, seated above the caonopy mounted on the chariot drawn by four zebus with two driers. Mah is enthroned like a Sassanian king with ceremonial axe, spear and cushions. The figure below is possibly Tishtrya, the first aspect of the constellation, as a young man. below Tishtrya is the tree of life.
According to wiki:
The Sasanian Empire, also known as Sassanian, Sasanid, Sassanid or Neo-Persian Empire),[10] known to its inhabitants as Ērānshahr[1] in Middle Persian language,[a] was the last Iranian empire before the rise of Islam, ruled by and named after the Sasanian dynasty from 224 to 651.[2][12] The Sasanian Empire, which succeeded the Parthian Empire, was recognized as one of the leading world powers alongside its neighboring arch rival the Roman-Byzantine Empire, for a period of more than 400 years.[13][14][15]