The earliest (unmarked) 1 pint seen has the same sprig in the fourth segment as shown under half pint. All regular marked jugs seem identical in design. I have however seen two "non-standards". One with handle 1 has a large windmill (from a 2 pint) while one with handle 2 has a 2 pint windmill and a man sitting facing at table plus a 3 pint man sitting facing at table. Both are marked 'Doulton Lambeth' in oval.