John's drawing - or Paul's?

Sketch found at Kenwood - but is it by John?

This image released by Julien’s Auctions shows a black and white drawing of the iconic "Sgt. Pepper’s Lonely Hearts Club" album cover. The drawing, discovered by the owners of the Weybridge house in England where John Lennon lived from 1964-68, will be auctioned on May 20, 2017. (Julien’s Auctions via AP) (Associated Press).

The concept of the cover was famously Paul's. And we have to admit that we're in doubt whether this drawing was one of John's or Paul's. When this story was posted on several Facebook pages and groups dedicated to The Beatles, more than a few fans were in doubt. What do you think?

Lots of people only associate John with simple pen drawings, not realising that Paul McCartney also is fond of draing little caricatures, as revealed in his Composer/Artist book from 1981.

In 1981, Paul McCartney published this book of music, lyrics and drawings.

Source: Washington Post
Julien's Auctions