Cosmetic: Light signs of wear.
Mechanical: Apparently working.
Lenses: Clean and clear, minor handling marks.
The Nikon S4 was introduced in March 1959 (the same year as the Nikon F) but was never imported into the United States. A total of 5898 units were made which, according to Rotoloni (p. 46) 'makes the S4 one of the lowest production Nikon rangefinders'.