The 50/1.4 and 50/2 (lower right) are shown with black rims which means they are the multicoated "C" versions. The Nikkor-H.C 50/2 was released in late 1972, and the Nikkor-S.C 50/1.4 some time in 1973 (dates on when "C" versions were released are not very precise). The 135/2.8 (second row) shows the lens data outside the filter ring which means it is also the multicoated version, also introduced in 1973.
On the other hand the 135/3.5 is still shown with a chrome rim which means the sample displayed is the single coated version. The "C" version came out some time in 1973. It is possible the "C" version was in production already but they didn't have one on hand for the shoot.
The picture wouldn't have been taken after mid 1974 as the first "New Nikkor" K lenses were being produced, and this line-up doesn't show any lenses from that series.
So this agrees with Hugh's date range of late 1973 / early 1974.