in the 1940s, the guy who illustrated โcurious georgeโ also illustrated some christmas carols. this was around the time of the first โgeorgeโ books, so its almost the same style. cool note here is the different houses used to indicate different music notes (quarter, eighth, etc)
https://hell.twtr.plus/media/a88719f07e7fd2cb4761dc6e32259231d291e13ad8909931bceb76073b8b7a9c.file