Here is a 74 underfolder. The picture is dated 1988, but the rifle would have likely been a pre-1985 model given the wood furniture up front. The "computer pattern" uniform on the guy hints that this rifle would have been issued to Airborne, Spetsnaz or KGB Border Guard soldiers.
Also of interest (to me) on this 74 is the vented gas tube and hooded front sight.
It's not all that surprising that a AK-74 variant might pop-up that isn't widely known. According to
Tantal, "The Russian AK-74 rifle has been the subject of a continuous improvement program beginning with the first hyper-prototypes assembled in the late 1960's and eventual true prototypes of the early 1970's. It appears that every few years, some major design and manufacturing improvements were made on the production lines, and although some were simply individual modifications, others were adopted as a package of changes for a specific Product Improvement Program (PIP). Rifles made between these large scale upgrades can be identified as specific subtypes.
Some of these subtypes are undocumented, and some are quite well known today. Sadly, few detailed and accurate literary works exist elaborating on these changes in either Western or Russian reference works. In other words, much of what occurred seems to be lost to the winds of time."