Tom Swift and His Giant Telescope
|Tom Swift and His Giant Telescope (1939)
|Tom Swift seriesVolume 39 in the first|
- The New Project
- An Accident
- A Murderous Attempt
- In Peril
- Tom Drugged!
- Deep Sea Diving
- Trapped By a Sea Monster
- A Robber
This work is in the public domain in the United States because it was legally published within the United States (or the United Nations Headquarters in New York subject to Section 7 of the United States Headquarters Agreement) before 1964, and copyright was not renewed.
Works published in 1939 would have had to renew their copyright in either 1966 or 1967, i.e. at least 27 years after it was first published / registered but not later than 31 Decemberin the 28th year. As it was not renewed, it entered the public domain on 1 January 1968 .