Frederik and Sonja Wenzel Candid portrait of Frederik and Sonja Wenzel. https://www.smeal.psu.edu/alumni/images/frederik-sonja-wenzel.jpg/view https://www.smeal.psu.edu/@@site-logo/logo.png Frederik and Sonja Wenzel Candid portrait of Frederik and Sonja Wenzel. Click to view full-size image… Size: 48KB
