Sometimes you see a mistake on E-bay that provides a special “teaching moment”, a mistake too good to pass up.
While searching for some key books I came across a Star Wars #1, 35 cent variant. One of the high priced keys of the Bronze Age.
At first glance all looks good. Take a look at the cover scan:
But then the seller does something I recommend you never do. Remember, condition is everything!
Live and learn!