Artifacts from an archaeological dig:

I dug deep into the bowels of my office cupboard, and found these: a 14 minute cassette and film reel called, "Why Do Girls Menstruate?" It's courtesy of o.b., dated 1975. If I had a tape player, I'd totally put this in and follow along with the reel, where I see pictures of girls skipping around and lazing in the pool. I also think o.b. should probably get a new marketing department given the advertisement appears to have not changed in over 35 years.