I'm thinking this very sweet cigar box on wheels might have been made by a parent or grandparent long ago as part of a traveling circus set; it seems well suited to house a lion or tiger behind those screens (though would also make a great cricket cage.) I especially love the screen covered round cutout window at the front end, and the yellow painted fully rotating axels and wheels. Lots of love invested in this.
Box itself: 8 5/8” l x 4 5/8”d x 5 5/8” t. Overall: 13 1/2” x 7 1/8” x 5 3/4”. Good condition, with general wear and tear; rolls along nicely.