Trying to find value of photo collection. motel brochure & postcard pictures from over 48 years. 35000 images?

Company started in 1958. All images are in transparency form. 1958 - 1968 all are 4 x 5's. 1969 - 1975 they are 2 1/4 x 3 1/4. 1976 - 2001 they are 35mm. After 2002 all are digital. We produce brochures and postcards for Motels, Nursing Homes, Hospitals and car dealerships.

You can not.

It must be exhibited and public appeal assessed before a value can be ascribed