click to enlarge
In another example of how the CME used to run relatively edgy advertisements, the above ad from the mid/late 1970s offers a paper trading Scorecard if the coupon is clipped and mailed in. This particular ad ran in Playboy (!) and takes a dig at a man's masculinity by stating "How to trade commodity futures while remaining a devout coward" above a photo of a chicken costume speaking to a man sitting in a brokerage office.