Andersen 2420 Casement Operator, 7-1/2" arm Left Hand, 1945-1960 - BronzeAndersen 2420 Primed wood casement window roto gear Amerock operator with round 9 16 diameter metal button. Application: Prime wood casement window Service Years: 1945 to 1960 Arm Length: 7 1 2 inch Arm Length was available in 7 1 2 inch and 9 1 2 inch arms. Handed: Yes, Left Hand As shown Markings: 7073 L stamped into arm ( 7073A) Color: Bronze Finish Priced and sold each, Operator Only, No Handle or screws Discontinued