Introduced in 1969, the Yashica Lynx 14E was a slight update on the earlier Lynx 14, with the most notable change between the two being the integrated metering circuit (and hence the IC reference on the front of the camera) that moved the meter's under/over display from the top plate of the camera body to inside the viewfinder. Additionally, the Lynx 14E slimmed down a bit on the size and weight of the previous Lynx 14.
Apart from those differences, the Lynx 14E and its predecessor the Lynx 14 were incredible rangefinder cameras for their era. Most significantly, the camera has a non-interchangeable 45mm f1.4 Yashinon lens that offers both excellent image quality and a blazingly fast f1.4 maximum aperture. This was a pretty incredible feature to see on a rangefinder camera of that time. The Lynx 14/14E also replaced the selenium cell meters that were commonly used prior to this point with a battery-powered CdS cell that was both more accurate and more reliable. A switch on the front of the camera was pressed to activate the meter. As mentioned, the Lynx 14 has a display atop the camera that instructed the user as to whether their settings were under or over exposing while the 14E moved the display into the viewfinder itself. Going back to the lens, the 14E has an aperture range from f1.4 to f16. A leaf shutter behind the lens offered shutter speeds from 1s to 1/500, plus a Bulb mode.