This excellent book is written by an experienced bantam and large fowl poultry breeder and show judge.
A true bantam is naturally small, not just a bonsai version of a large chicken.
They are a cross between a common bantam and a polish fowl.
To judge their size they are standing next to a modern game bantam hen. in the following picture.
These classic corn cobs have 8 rows of sweet corn seeds, the mark of the original Golden Bantam Sweet Corn strain.