I have an old photo that was my Dad's showing a army b4 bomber. air corp serial nr 32-133. what year was this in service? Was it ever in combat? Thank You.

Keystone B-4

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remleeguy

I have an old photo that was my Dad's showing a army b4 bomber. air corp serial nr 32-133. what year was this in service? Was it ever in combat? Thank You.

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