Three of the key talents of the P-51 Mustang design team examine technical papers. From left to right are L. Waite, the Chief of the Wind Tunnel tests, R. Rice, Chief Engineer, and E. Schmued, the Chief Project Engineer. Handwritten caption on reverse: 'L to R. L. Waite - Chief, Wind Tunnel Test. R. Rice - Chief Engineer. E. Schmued - Chief Project Engineer.'