I came across a full set of 1963 Beatles autographs signed on the back of a business card while preparing University Archives's auction email. I don't recall seeing one before, but I haven't scoured every auction with Beatles autographs for decades like some members have.

It's 3.625 by 2.5 inches, so significantly taller than a US business card: 3.5x2 inches

Have you seen one before? How many are known? If they're rare, is it likely to be worth more, less or the same as a similarly signed but larger set?

Here's the listing for more details: https://www.invaluable.com/auction-lot/beatles-signed-card-circa-19...