Also known as a Pricker Punch,  used for marking leather before sewing to create a uniform distance between stitches
All Steel, available in 9 tpi RH
Also available in ½" size
 
These pricking irons are the last of the original George Barnsley stock, please bear in mind that these pricking irons were hand made in the 1960's so are not in 'perfect' condition - this is reflected in the 'end of line price reduction'