One of the toughest back variations to find from the M101-4/5 group of sets, as about 100 total "Holmes to Homes" ad backs are graded across PSA and SGC registries. M101-4 and M101-5 are sets Mendelssohn created with 200 ballplayers of the mid-1910s. Card backs often featuring ads from a range of stores and companies for their own marketing purposes. Contemporary advertising shows some stores giving groups of cards away as an incentive for in-person shopping and others sold their sets by mail order. Holmes to Homes appears to have provided one card with each loaf of bread.

While this SGC PR 1 grade reflects residue and paper loss from being removed from an album, Lute's front image remains strong, clear, and well-centered. The combined PSA/SGC population reports shows this is its only Lute Boone, making it a treasure for collectors on the hunt for these unique examples!