1921 Famous Sluggers Yearbook Variations

[Prewar Collector]

Does anyone out there have any information concerning the 1921 issue of Famous Sluggers Yearbook? This is the first year H&B produced their yearbook, and I have two of them, but they are different externally and internally.

The covers front and back are the same, but one has a blue-green background color while the other is slightly brown in tint. Both of my booklets have 32 numbered pages, but there are information and photo differences between the two. More telling are the statistics listed for the players. The blue-green version has stats up to 1920, while the brown version has stats up through the 1921 season.

Both covers give a copyright date of 1921.

Were both printed in 1921 (one at the beginning of the 1921 season, and the other after the end of the season)? Or was one printed in 1921 and the other in 1922?

I'll try to include some photos to illustrate the differences between the two versions.