One who brings good luck, and possesses a “good eye.” The contrary of Jettatore, or one with an evil eye, who always brings bad luck.
Ces envoyés du paradis, Sont des Mascottes, mes amis, Heureux celui que le ciel dote d'une Mascotte.
The opera called La Mascotte (1883).
“I tell you, she was a Mascotte of the first water.” —The Ludgate Monthly, No. 1, vol. ii.; Tippitywitchet, Nov. 1891.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894