Andersen Right Hand Operator with a 7-1/2 Inch Arm and Square Shoe in Bronze. This operator was manufactured from 1960 to 1974 for 1 foot 10 Inch Primed Wood Casement Window. Andersen Window Series: Primed Wood Casement Handing: Right Hand - As Shown Operator Type: Single Arm # 7073A 7-1/2 inch Short arm Window Size: used for 1-6 windows. Years In Use: 1960 - 1974 End Attachment: Square Nylon Plastic swivel button Wood casement bronze colored operator for right hand casement units manufactured 1960 to 1974. This operator may be stamped with 7073A. The length of the arm from the rivet to the elbow or bend is 7 1/2". This operator works for units with a visible glass dimension width of 15 3/4". The handle is not included. Operator replaces previous vintage operators on units manufactured 1945 to 1960 which may have a brass swivel end or a round button end. Note: Light signs from handling and storage. No installation screws included.