Antique Vintage Boston Gear 45 Tooth Spur Gear Industrial Steampunk Decor gear is around 5-7/8" diameter. bore measures 15/16"

 

 This Gear is from the Woolrich mill in Woolrich PA. it closed a few years ago.
 
 
 
This is surplus to a now closed factory that kept spare parts on the shelf. The mill still had some of the old parts for some of their old equipment.
 
 
[Please Look at all the pictures they are part of the description]  
                                                                                                        [Cart 1032]