Duncan's "El Torito" (The Little Bull) yo-yo from Mexico, circa 1950s. This model is the smaller version of its larger sibling "El Toro", also made by Duncan. The plastic El Torito is considered a beginners yo-yo. Has a clear lense over a printed paper disc on each halve. Wooden axle. Inside one halve is a small BB that rattles as the yo-yo travels up and down the string. Same design on both sides.
To see all mini yo-yos in this museum, in the left panel, click Exhibits.
In the right pane, in the Name/Model field, type mini, then click Browse.