This is an illustrated four-page sheet-music publication of the song "My Pet Waltzes," by Procida Bucalosi , published by the National Music Company. There is no printed date, or at least no legible one, but it appears to be from the 1910s, give or take a decade.
It measures approximately 11 x 14 inches.
This is an extremely compromised copy, with edges missing, brittle and crumbling edges, fading, and discoloration from age. See images, which are of the actual item, not stock photos.