Image:Billingsley small.jpg

{{Non-free historic image|image has rationale=yes}}

{{Non-free use rationale

|Article=Frederic C. Billingsley

|Description=a photo of Fred Billingsley's face, cropped from a photo in an article

|Source=1965 SPIE proceedings paper by Billingsley

|Portion=a small crop from the photo of the equipment that the paper was about

|Low_resolution=yes, it's tiny

|Purpose=to identify the subject

|Replaceability=no other photos of him are known

|other_information=

}}