File:Jack Frost--Connecting Links As Seen from Customs House Tower.jpg

	This work is in the public domain in the United States and the source country. In most cases, this means that its copyright expired under the law of the source country and it was either published prior to January 1, 1929 or its copyright also expired under the law of the United States. Its copyright has also expired in those countries with a copyright term of life of the author plus 50 years or less. To the uploader: please provide relevant publication and authorship details. For non-US works, consider attaching a country-specific tag if available.
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Book copyright 1955; copyright not renewed according to search of Copyright Office database. Author died in 2012. Note on last page of book states: "Therefore we are grateful to Mr. Frost for granting reproduction rights, without charge, to newspapers, magazines, radio, television and other media, provided that permission is secured in writing. The interests of Boston would be well served by having the widest possible use made of these sketches."