The blades were laminated back then, if memory serves.
This information is gleaned from a review Mac Overton did of an out of print book on Morseth over on Knife World:
"Harry Morseths family was from Norway and he emigrated to the U.S. when he was 17, entered through Canada, and eventually was employed at a lumber company in Everett, Washington. There he worked in the repair shop, and soon learned how to use the lathes, milling machines, drills and planers there to make knives from old planer blades made of A-2 steel. Around 1920, he set up a small knife-making shop in the back yard of the home to where the family had moved.
The first Morseth hunting knives were apparently patterned after the Marbles Ideal. The book documents the transition from using A-2 planer blades to using laminated steel Brusletto blades Harry brought back from a trip home to Norway in 1938. It also documents what materials were used for handles and guards, such as how brass was used for guards and fittings on most knives Harry made during World War II, when nickel silver was hard to find. Whale bone and walrus tusks, obtained on a trip to Alaska, became handle material for some early knives. Harry also made some of the machinery for his shop. Beall writes Saying Harry was creative is somewhat like saying Einstein was smart, it is a major understatement.
The book says that Harrys Brusletto laminated blades were forged before 1948. In 1948, that firm began using a 60-ton press for cutting blades from strips of laminated steel. The laminated blades consisted of a 1/16-inch thick layer of high-carbon steel, sandwiched between layers of soft, ductile iron.
Collectors will be interested to note that from 1946 to 1951, Morseth blades measured just under five inches long. Around 1953, he added a modified Bowie with a six-inch blade to the line. Also, he offered less-costly utility knives made of thinner stock than his regular line.
The book contains 15 chapters (including two addendums) and an incredible 227 photos, most in color. The main chapters include: (1.) Introduction, (2.) Birth of a Business, (3.) A Blade of the Best Traditions, (4.) Harrys Knife-making in a Nutshell, (5.) The Patented Sheath, (6.) Harrys Business in its Peak Years, (7.) A Different World, (8.) Steves Turn at the Helm, (9.) The Road to Morseth Divides, (10.) Morseth Goes to Arkansas, (11.) Arkansas Morseth Knives, (12.) Steves Last Years, and (13.) Steve Takes the Reins.
Some of the last chapters document the problems that faced the company as it was handed down to Steve Morseth, Harrys grandson. While his knives may have been better designed and fitted than those from Harry, he tried to sell them at old-time prices, and, as knife entrepreneur A.G. Russell once wrote, the result was knife-making disaster.
The superlative knife maker, Bob Dozier, was hired by A.G. Russell to make Morseth Knives after A.G. bought the company. In addition to his own knives, Dozier made Morseths. (Morseths continued to use Brusletto laminated blades, while Doziers own utilized blades of D2, a steel of which he is an acknowledged master.) Dozier had a lot of input into the writing of this book, and wrote part of the introduction.
Finally, there are also the two Addendums, Kit Knives Lose Their Edge and Morseth Knives by Time and Maker. In particular, the second will be invaluable to collectors and users alike. It gives guidelines on identifying when and where a particular Morseth was made, and whether it was made by Harry, Steve, Bob Dozier or others."
Best Regards,
STeven Garsson