Back in the 70's I went to a garage sale in my home town.
Bought some comic books just a few a dozen or so maybe.
Bunch of the normal stuff, Archies, etc.
Got home and was going through them.
Opened the Archie,
Inside was a coverless X-Men #2!
Someone had put an Archie cover over it!
Still have it in my collection to this day.
Yours,
B