As a card collector, the quirky and unusual always interest me. "Cards" like the following - which I had to scan twice to get the full open length are interesting (though I guess I could have taken a picture instead, but I always prefer scanning, but didn't want to break these apart).
I always have a soft spot for these "inserts". Advert cards are a great little historical snap shot. In times like today with inflation on the rise, I always find it interesting looking at the old prices on mail in offers - kind of like how grandparents remind us of going to the store with a nickel and coming out with a bunch of penny candy - man prices continue to change.
I actually need the Yount Bowman card because...apparently there are variations with a difference between one and two asterisk marks on the back...lol...things are getting a little detailed in collecting these days, but also it begs the question - why did these cards have such minute differences in the first place?