Wonderful set of three Bob Singer production sketches for Yogi Bear valentine's day greeting cards, accomplished in graphite and colored pencil on individual off-white sheets, 8.5 x 11 and 11 x 8.5, each signed below in black ink by Singer. The sketches include: Boo-Boo offering a bashful Yogi a valentine gift; Yogi as a baseball catcher awaiting a high-speed heart; and Cindy Bear dancing in a whirl of hearts and flowers, with Singer adding above his signature: "Greeting card designs/Valentine's Day." In overall very fine condition.
