The 19715 serial number is between 1884 - 1890. The link listed above might give you a more exact estimate.

The model number is usually on the action flats. It could be a two digit number with or without a letter following it or a three digit number (starting with a one) with or without a letter or two after it. If you get a decription or picture of the action and locks, that will help too.

Keep trying!

Mike