Anonymous 11/12/2019 (Tue) 19:49:51 No.35457 del
(81.89 KB 1024x512 SES.jpg)
(63.13 KB 300x394 Ur_lyre.jpg)
>>35238
That "keystone" symbol with a quadrangle and upright lines also reminds me of an ancient type of lyre, the kind played in Mesopotamia. Some such lyres have been found in royal graves.