Weight
20 grains equals 1 scruple
3 scruples equals 1 dram
8 drams equals 1 ounce ( 437.5 grains Troy )
16 ounces equals 1 pound ( 7,000 grains Troy )
28 pounds equals 1 quarter
4 quarters equals 1 hundredweight (112 pounds )
100 pounds equals 1 central
2,000 pounds equals 1 short ton
20 hundredweights equals 1 ton ( 2240 pounds )