Here we have a large set of old antique 21Kg Brass and steel steelyard balance shop scales complete with pan , the pan is about 32.5cm ( 12.75" ) in diameter and the arm is about 50cm ( 19.75" ) long , it is well marked on the arm and counterweight ring with P - 21Kg and another mark which we are unsure about possibly a weights and measures mark ( it looks like a O with what looks like 2 x YY top and tailing each other and a underline mark ---)  the condition old used but good with age and use related wear