British predecimal currency
Visualisation of some British currency terms before decimalisation by CMG Lee.
1 quarter= 1/16 d.= 1/192 s.= £1/3840farthing
1 third farthing= 1/12 d.= 1/144 s.= £1/2880
1 half farthing= 1/8 d.= 1/96 s.= £1/1920
1 farthing= 1/4 d.= 1/48 s.= £1/960
1 halfpenny= 1/2 d.= 1/24 s.= £1/480
1 penny= 1 d.= 1/12 s.= £1/240
1 twopence= 2 d.= 1/6 s.= £1/120
1 threepence= 3 d.= 1/4 s.= £1/80
1 groat= 4 d.= 1/3 s.= £1/60
1 sixpence= 6 d.= 1/2 s.= £1/40
1 shilling= 12 d.= 1/–= £1/20
1 florin= 24 d.= 2/–= £1/10
1 half crown= 30 d.= 2/6= £1/8
1 crown= 60 d.= 5/–= £1/4
1 half sovereign= 120 d.= 10/–= £1/2
1 pound= 240 d.= 20/–= £1(sovereign)
1 guinea= 252 d.= 21/–= £1.05
For contrast, 1 new penny = £0.01 = 0.2 shillings = 2.4 d. ≈ 2 old pence + (1 + 1/3 + 1/4) farthings