The label is on the inside of the lid

Land O' Sun is an American brand of dairy products that was introduced in 1925 in Johnson City, Tenn.  It was acquired in 1998 by Suiza Foods.  It is currently owned by Dairy Farmers of America and doing business as Pet Dairies.

It is made by Muckle Mfg Co from Owatonna, Minn

Modern Metal Products began in 1925 as Muckle Manufacturing Co in Owatonna, Minnesota.  Muckle Manufacturing was best known for their insulated "wrinkle finish" aluminum boxes into which milk was delivered by truck to millions of American homes for decades.

It has a few dings on the front side and there is some rust on the inside only base (does not go through), there is a sheet of rubber on the bottom to protect it from further damage