I had a friend buy this for a small photography museum. They would like to know the era of the battery box.
http://www.ebay.com/itm/Antique-FORD-BATTERY-CASE-Developing-Developer-Tank-with -Kodak-No-5-Hangers-/291625077654?hash=item43e6358b96%3Ag%3At-IAAOSwgyxWVoVf&nma =true&si=z5frUq2p9o%252FDMhiYDS95DSpvUBk%253D&orig_cvip=true&rt=nc&_trksid=p2047 675.l2557
Ford batteries were made into the 50's. The case looks like a size 2L. My guess would be post WW II.