|Postcard: Malo-les-Bains - Avenue Kleber,
sent 30 April 1915
The failure to submit the deposit materials won't terminate copyright protection; the penalties fall in the wrist-slap category. According to the Copyright Office, "If the required deposit is not made within three months after receiving a demand from the Copyright Office, the owner may be subject to a fine of not more than $250 for each work." In other words, searching the Library of Congress for proof of deposit won't help. Searching copyright renewal records also won't help because renewal is only required for works published before 1964. Our conclusion? We believe that copyright protects the 1983-1989 Postcard Collector magazines for 95 years from the date of publication.
So, who owns the magazine copyright? We don't know. Krause Publications, a publishing business with 46 magazines and 750 books, was the copyright owner until 2002 when Krause was sold to F+W. F+W went bankrupt in 2019 and auctioned off the profitable magazines (but there's no indication of what happened to the copyrights in the defunct magazines).
Did the authors retain copyright? The authors would have retained the copyright in their articles unless they were employees of Krause, or they signed an assignment of copyright or work made for hire agreement. In other words, the article authors may have granted the first-publication license and kept the copyright. That wasn't uncommon back in the day. Further discussion with the authors may prove beneficial.