104 Sundays, story and art entirely by Harold Foster, and eight pages of extras.
From the publisher:
Traveling the North Atlantic Ocean leads Prince Arn and his crew to the New World. Arn's Vikings team up with the Algonquins, leading to the discovery of the St. Lawrence seaway. Meanwhile, Mordrid plots his revenge, Aleta suffers a case of mistaken identity and Prince Valiant goes on a mission to find a missing heir. This volume also includes a feature on Bob Fujitani's Prince Valiant stories in the Dell comic books, and a gallery of Valiant covers from books and comics.
This came from the library of Burny Mattinson (1935-2023), an animator, director, producer, and story artist for Walt Disney Animation Studios, from 1953 until his death in 2023. Mattinson directed Mickey's Christmas Carol and The Great Mouse Detective. He was named a Disney Legend in 2008 and was the longest serving employee of The Walt Disney Company, with a career that spanned almost 70 years. His extensive library included numerous subjects and especially large collections of books on Disney, animation, and classic comic strips.