Columbia subject headings:
Linotype.
Printing--Specimens.
Harvard subject headings:
Linotype--Specimens.
Mergenthaler Linotype Company
Printing--Specimens
Princeton subject headings:
Catalogs.
Linotype--United States--Specimens--Catalogs.
Mergenthaler Linotype Company--Catalogs.
Printing--United States--Specimens--Catalogs.
Type and type-founding--United States--Specimens--Catalogs.