This is an MQ-1 Pile Cap that preceeded the M1951 version. It has a QM tag dated 1951 and is dated 1951. This MQ-1 spec clothing is the true first issue Korean War gear and was only producd for a short period. This example has a beautiful Japanese-made 9th Infantry (Second Division)DI on the front. Size 7 hat is VG+ condition.