Nikon S4, March 1959
Simplified version of the S3 with only cloth shutter, without the self timer and motor drive capability. The 35mm frame line in the viewfinder was also being eliminated and must be reset manually (bright light frames for 50 & 105mm only). Quite a short run in production as it was discontinued in July, 1960. No black version surfaced thus far. The Nikon S4 was only one third of the production number as compared to Nikon S3, a total of only 5,898 of the Nikon S4 were being produced.