This Buy-I-Now is for a New Old Stock Redfield Gun Sight Company Made In Denver, Colorado A Vintage Redfield Model: Springfield 1903 03A3 03 A4 1pc Blued Steel Base with Original Mounting Screws, Instructions & Box. This Base is the Model with Only 2 Mounting Holes and Center to Center Of Mounting Holes is 4.10" and Factory Mounting Screws are 8-40 Thread. This Vintage Redfield Base Is Still Unused and Still in New Condition.  Buyer Pays $8.00 Shipping in US & Will Ship Internationally for $30.00, Thank you, Terry