A replica of the original Steiff teddy bear from 1902, called "Bear 55PB," sits on display at the Steiff Museum in Giengen, Germany. (Photographs by Louisa Marie Summer for The Washington Post) ...

Top-selling teddy bears have the following attributes in common: low production, they commemorate a special occasion, and in one case, is the sole surviving example, according to Jacquie Denny, co ...