WTS changed their view on Jesus having a beard WT May 1, 1968 and examining the date the picture appeared a WTS publication can who if it was pre-1968 or post-1968. The long discussion within shows how the WTS never admits they were "wrong.
"● When Jesus Christ was a man on earth, did he wear a beard?—K.A., U.S.A.
Biblical evidence is the most reliable testimony to be found on this question, and a recent careful review of what it says indicates that Jesus did indeed have a beard...long discussion then "Nevertheless, as already shown, it is apparent that Jesus did wear a beard, and so artistic representations of him in future Watch Tower publications will harmonize with the Scriptural evidence to that effect." "apparent" is the key weasel word.