Offered this very , very rare English made 

Samuel Turner Egg-Letter Scale / Egg Grader / Egg Weigher / Egg Scales.

During my time that I'm selling on EBay -and this is for more than 20 years- this is also one of the rarest egg-letter scales ever made and found. It looks like a horse shoe. For more information: see book from Bill & Jan Berning: Scales a collectors guide page 13. 

Its a pendulum egg scale going up from 0 to 4 oz.

The scale is made from brass and aluminium. 

This scale measures: high 7.2", wide 3.2" lenght 9.0".