1956~1961 Malaya & British Borneo 1 cent coin

Technical Specifications:
Size:20 x 20 (mm)
Weight: 4.21 gm.
Composition: Bronze
Mint: Royal Mint, UK.
Year & mintage:
1956 - 6,250,000 pcs
1957 - 12,500,000 pcs
1958 - 5,000,000 pcs
1961 - 10,000,000 pcs