Slice 7 lbs. tomatoes and cover with 3 cups Mrs. Lee's Pickling Lime to 2 gallons water. Soak 24 hours, drain, rinse well. Soak 4 hours in fresh ice water, changing water every hour. Make syrup of 4 lbs. sugar, 2 qts. vinegar, 6 teaspoons plain salt and 1 stick cinnamon. Pour over tomatoes, let stand overnight. Boil 1 hour. Pack in jars and seal. Green food color may be added for brighter green color if desired.