and what the hell is a schilling? or a crown? or a half crown? do you have a key for those?
edit (maybe it is time for me to stop watching old sherlock holmes movies with basil raithbone?)
You mean shilling, schillings are the old Austrian currency.
One pound (£) = 20 shillings (s) = 240 pennies. One shilling = 12 pennies (d, from the the latin denarii). One guinea = one pound and one shilling (customary pricing for luxury goods or the fees of the professional classes but there were physical 1 guinea gold coins if you go back far enough).
Coins:
Copper or brass:
Farthing 1/4d
Halfpenny (ha'penny) 1/2d
Penny 1d
Threepenny piece (Thrup'ny bit) 3d (really old ones were silver or part silver, nickel-brass introduced in 1937)
Silver (for some value of 'silver'):
Sixpence (Tanner) 6d
Shilling 1s or 1/-
Florin 2s or 2/-
Half-crown 2s 6d or 2/6
Crown 5s or 5/- (wartime slang "a dollar". Not really used in circulation after WWII although commemorative coins were struck that were still legal tender)
Notes:
10 shillings (ten bob note)
1 pound note (a quid)
5 pound note (a fiver)
10 pound note (a tenner)
20 pound note (slang names very local, not universally used)
50 pound note (slang names very local, not universally used)
There was, in fact still is, a gold coin with a face value of £1, the sovereign, but the intrinsic value has exceeded the face value for many, many years.
Slang denominations:
£25 - a pony
£500 - a monkey
£1000 - a grand
Decimalisation happened in 1971, pounds stayed the same, 2.4 pennies became 1 new penny with 100 new pennies to the pound.New coins were issued in denominations of 1/2, 1, 2, 5, 10 and 50 pence. The old sixpence, shilling, florin and half crown were left in circulation and gradually withdrawn, treated as having their nominal decimal coinage values (6d -> 2 1/2 p, 1s -> 5p and so on). For many years coins still bore the imprint "new pence" but this was subsequently dropped and they all just now say "penny" or "pence".
The Republic of Ireland (Eire) also decimalised on the very same day having traditionally used the same denominations of currency as the UK but with the Punt substituting for the Pound.