Keywords: aviation aircraft airplane nx-3321 nx3321 x-3321 x3321 prudden-san diego airplane company pruddensandiegoairplanecompany prudden xm-1 trimotor pruddenxm1trimotor prudden xm-1 pruddenxm1 prudden trimotor pruddentrimotor xm-1 xm1 xm-1 trimotor xm1trimotor siemens-halske siemenshalske siemens-halske sh 14 siemenshalskesh14 sh 14 sh14 ryan/siemens-halske ryansiemenshalske ryan/siemens-halske sh 14 ryansiemenshalskesh14 trimotor Catalog #: 04_03249 Album: 63 Description: Prudden All Metal Airplane Date: C. 1927 Repository: San Diego Air and Space Museum Archive Catalog #: 04_03249 Album: 63 Description: Prudden All Metal Airplane Date: C. 1927 Repository: San Diego Air and Space Museum Archive |