These images were not released for postcard production.
In the 1990s a woman came in and WANTED TO SEE WHAT THE NEGATIVES WERE PHOTOS OF.
She knew they were of San Francisco just after the earthquake, the photographer, a family member shot the photos and gave her the negatives before he died
I have never found anyone who knows of this size negative in 20+ years of having the contact prints. Very Rare!!!
42 yrs. professional photographer/publisher/artist