FOUR ??
12 pennies made a shilling
5 new pence was the equivelant using a bob.. 5 pence bit
thus it was 2. summat pennies to a one new pence. Shops used to err on the safe side thus 2 things from the penny tray but the country played up buggery because they got less for there money (using penny trays as an example here) so some shops erred on the other side and you may have got 3 things for one new pence... But four? That was a good shop