I found this Rockford Dairy Co. milk bottle while metal detecting an old dump site. It says sealed with an inverted 48 on the reverse side and a 27 on the bottom. I cannot find any info. on the company or any value info. on the bottle. Anybody know anything about them?
Get two people who aren't diggers themselves from Rockford into some bidding competition and it may bring a hundred bucks. Otherwise most milks are not all that valuable. It is the local interest that drives the price. If I were local to the dairy, I would prize such a find.