13. Don’t say a thing is “very rare” or “very common” remembering that what is rare in Pennsylvania may be common in Massachusetts. Most antiques depend upon locality for their rarity and your opinion may be very local.

14. Don’t subject old glass to very hot or very cold water in washing. Early Sandwich is subject to atmospheric conditions. Sudden changes of heat and cold will cause cracks.

15. Last and not least, don’t “hoard”; give the other collector a chance. By exchange and sale of specimens you will improve your own collection and if you help some one else to get what he wants it will come back to you ten fold in unexpected moments. An old house, old glass and old friends is a combination worth living for.

The End.

COLLECTOR’S DATA

INDEX.

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