large antique 4+ pound cast iron platform or beam scale weight 600 LBS

Large antique vintage cast iron scale weight. This is a large weight and weighs about 4 1/4 pounds. It is marked for 600 pounds and would have had be used with a large platform scale, probably at a feed mill or livestock market to weigh farm animals or hay and grain.

It measures about 3 3/4" across and 1 1/2" high with worn old silver-gray paint.