1919 ~ 1926 Straits Settlement 1 dollar silver coin

Technical Specifications:
Composition: 0.5 Silver
Diameter: 34.1 mm
Weight: 16.85 g.
Edge: Milled
Mint: Mumbai / Bombay
Year & mintage:
1919 - 6,000,075 pcs
1920 - 8,163,928 pcs
1925 - -
1926 - -