Skil Craft Biology Lab Microscope Set Circa Early 1970s

I got a set with the same cover a few years ago but the contents are completely different. The other has various test tubes and such and this one has a microscope. This one is missing all the nifty biology samples but it was only $5. I was just going to use it as a carrying case but it already has stuff in it. Stuff being a microscope. The microscope has 2 lens settings and used a single AA battery.
One note about the Skil Craft sets is that they have both boys and girls on the front. The Gilbert sets are strictly male. The clothes have the early Brady Bunch look so I am thinking sometime about 1971.