Interesting: a real "flip stock" as they're called in Topps Heritage.

Thanks for that information. I was unaware that Topps is currently intentionally making "flip stock" cards. Although it is unlikely to possess much value, is it safe to assume this one in my collection is a rarity?

Very nice find Mike. While I have seen many examples of wet transfers over the years, this is the first flip stock anomaly from 60s/70s I have seen.

I saw a handful of 72s like that offered years ago. Maybe in the 90's?
The asking price was way too high for me at the time.

It's really nice to see one.

Here's a Dean's Card listed on COMC.
https://img.comc.com/i/Baseball/1966...&size=original
1966 Topps - [Base] #373 - 1966 Rookie Stars - Jack Hiatt, Dick Estelle [EX]
Courtesy of COMC.com

1957 Error Cards
 

These likely were parts of three-card salesman samples. The correct versions are on the top left of the two sample cards and the error right under it. The two right versions of each are the correct # and info versions from the correct cards. The ones at the bottom are the cartoon that is also used on the errors. Notice that the error cartoons do not have all of the red ink. The cartoon on the correct Whitey Ford has the answer on two lines only, while the error card above it uses three lines with a hyphen. I did a lot of research using COMC to find the Billy Martin cartoon that was used in the DeMaestri error card. I believe the sample cards had two of these on either side of a third player who had the commercial on the back, as is seen on the Frank Robinson card back.

Notice on the closeup of the cartoons, that there is some difference in the colors as well as sentence structure on one.

Neat stuff Tom.

The #37 that was recently sold on eBay (Early Wynn front, Don Drysdale back, Frank Torre card #) was one I gave the seller the identification of being a salesman sample in a Facebook group. Sold for $150 as a BIN/BO. I was predicting a sale price closer to $50.

https://img.comc.com/i/Baseball/1957...&size=original
1957 Topps - [Base] #294 - Scarce Series - Rocky Bridges
Courtesy of COMC.com

Blue splotch on left border is a recurring print defect.

Here's an odd one that is quite easy to find.

The 1972 Series 6 checklist can be found with a pair of smudgy dark areas interfering with the names near the bottom. They are usually quite similarly placed across multiple cards, but there is some variation to where they appear (I believe).

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