Airman specializes in handcrafted bicycle frames
Air Force 1st Lt. Ken Cerreta uses Vernier calipers to measure the top tube on a bicycle frame he’s building for a customer. Each steel frame Cerreta builds is fitted to exact customer specifications. (Paul Holcomb/U.S. Air Force)

Download Image: Full Size (1.19 MB)
Photo by: Paul Holcomb |  VIRIN: 170128-F-QT350-0003.JPG