If the forum had been around in the early 70's
In this era of parking lot finds and electron microscope errors I think it would have been a hoot to have posted the following: 'I found this 1969 penny in a roll with double images. Is it rare? I'll show a picture later.' The responses would have been great!
Now most of us know that '68 and '69 were known for an abundance of MD strikes. I would follow up with this photo...
You see, that's exactly what happened to me in 1972 while roll hunting. Sold for the crazy amount of $385, lottsa money for a 15 year old. ( PS. the coin in the photo is similar in condition to mine )