From 24 April 1926 until his accession, Mohammad Reza's arms notably consisted of two Shahbaz birds in the centre, a common symbol during the Achaemenid period, with the Pahlavi Crown placed above them. Upon his accession, he adopted his father's coat of arms which included a shield composed of the Lion and the Sun symbol in first quarter, the Faravahar in the second quarter, the two-pointed sword of Ali (Zulfiqar) in third quarter and the Simurgh in the fourth quarter. Overall in the centre is a circle depicting Mount Damavand with a rising sun, the symbol of the Pahlavi dynasty. The shield is crowned by the Pahlavi crown and surrounded by the chain of the Order of Pahlavi. Two lions rampant regardant, holding scimitars supports the coat of arms on either side. Under the whole device is the motto: Mara dad farmud va Khod Davar Ast (Justice He bids me do, as He will judge me or, alternatively, He gave me power to command, and He is the judge).