re Barley Mow I always understood it to be
The Gallon
The Half gallon
Quart-pot
Pint-pot
Half-pint
Gill-pot
Half a gill
Quarter gill
Nipikin and a dram more   Heres good luck etc

re Byker I was taught
The pitman he gets one and six
The Deputy gets half a crown
The Overman gets four and six
And all for walkin up and down

and after working many years down the pits in Warwickshire four and
six was about four bob more than most of them were worth