Pre-1978, no mark. The publisher and subscription information on page 2 has no copyright information--none of the other 17 pages of the paper do either.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
{{Information |Description=Photo of the group the T-Bones who had a commercial they did become a hit song-"No Matter What Shape". |Source=[http://krlabeat.sakionline.net/issue/12feb66.pdf KRLA Beat] page 15. |Date=February 12, 1966 |Author=KRLA/Beat P...