PAIR OF POTTERY BOOKENDS MADE BY THE COLLECTIBLE BRETBY FACTORY RARE SHAPED BOOKENDS IN THE FORM OF TWO POLAR BEARS, SAM AND BARBARA. SAM AND BARBARA WERE ONE OF LONDON ZOO'S BIG ATTRACTIONS IN THE EARLY 20tH CENTURY IN 1905 THEY FAMOUSLY ESCAPED THEIR ENCLOSURE BY BITING THROUGH THE PADLOCK THAT SECURED THEM THIS STORY FEATURES IN THE FOLLOWING ARTICLE http://www./earth/earthnews/3340856/London-Zoo-celebrates-its-180th-birthday.html THESE BOOKENDS WERE PROBABLY SOLD AS SOUVINIRS AT LONDON ZOO THEY DATE TO c. 1920s/1930s