Andersen left-handed 7191-32 CN Series 8-3/8" straight arm operator for Perma-Shield casement windows manufactured from 1979 to 1995.

Stone colored nylon shoe attached to top side of operator arm.
Includes the stone color plastic cover. 
Does not include handle # 0532408

Related Andersen Casement window hardware:
1361312 - Straight Arm Operator - CN Series - left
1361314 - Straight Arm Operator - CN Series - right
1361122 - Straight Arm Operator - CR Series - left
1361124 - Straight Arm Operator - CR Series - right

Written Article: Andersen Casement Window Operator Replacement
Video From Andersen: How to Replace Straight-Arm Operator