812921  Photofinishing Laboratories (Except One-Hour) 

This U.S. industry comprises establishments (except those known as
"one-hour" photofinishing labs) primarily engaged in developing
film and/or making photographic slides, prints, and enlargements. 

The data published with NAICS code 812921 are comprised of this part 
of the following SIC industry:

     7384 (pt)  Photofinishing Laboratories, (Except One-Hour)