jim360
This is not my list, but I can confirm that it is pretty accurate.
A pint of milk: a penny ha'penny (i.e. 1.5 times a 240th of a pound)
A two ounce bar of chocolate, tuppence (a 120th of a pound)
Seven ounces of Lyons' "Green label" tea: seven pence ha'penny. (7.5 old pence)
Eggs around one and six a dozen, i.e. a penny ha'penny each.
A gallon of paraffin (aka kerosene) for portable lamps or heaters, two shillings (24 old pence)
A packet of twelve cigarettes (Will's Gold Flake or Player's Navy Cut) eleven pence ha'penny.
An adult man's haircut, short back and sides: six pence.
A rail journey: a penny a mile (or a penny ha'penny first class).
A tinned can of baked beans or anything similar: six pence.
A battery for a small torch (aka flashlight) for the "blackout", five pence farthing, including purchase tax (a farthing was a quarter of a pre-decimalisation penny)
A new novel. seven shillings and six pence (a shilling was a twentieth of a pound)
A reprinted novel: six shillings.
A Penguin paperback: six pence.
A weekday newspaper: one penny
A first class postage stamp: a penny ha'penny, increased to tuppence ha'penny during the war.
These are my recollections
Bananas what were them?
Loaf of bread: 4½ pennies
Petrol: 4 gallons for £1
Carrots: 1 Penny each
Another good source of information
http://www.ne-diary.bpears.org.uk/Bck/Popular.html