The New Zealand Railways Magazine, Volume 3, Issue 11 (March 1, 1929)
We do not always have a proper apple-corer at hand, but an ordinary clothes peg is very good, particularly a new one.
If baked apples are stuffed with dates or raisins they are most appetising.
When bottling fruit: A little vinegar added to the syrup when bottling fruit will add considerably to the keeping qualities. It is particularly to be included if the fruit has had to be picked in damp weather, or is slightly bruised. Use about two tablespoons to a pan of syrup.page 60