This is likely based on the Legend Films 3D Classics restoration, which converted the original black-and-white (and colorized) film into 3D for Blu-ray. Plot & Notable Elements
Stan Laurel (Stannie Dum) and Oliver Hardy (Ollie Dee) Technical Features of This File Babes in Toyland 3D (1937)Half OU.1080p.AC3-rus...
"Half Over-Under," a 3D format where two images (top and bottom) are compressed into a single 1080p frame for 3D playback on compatible TVs. Resolution: 1080p (Full High Definition). This is likely based on the Legend Films