I have not idea where this recipe originated and given the number of corrections on the card I doubt it was originally my grandmothers, she was just too careful about her recipes. I love beets but this really has too much sugar for my tastes.
1 cup red vinegar (cider or white)
2 cups sugar
4 tablespoons white karo
1/4 teaspoons salt
-penciled in: 3 cans Beets
Mix all ingredients together, and boil (slowly) for at least 30 minutes or longer. Pour over (drained) diced beets while steel [sic. still] hot.