This is a 1949 pull toy from Fisher Price, Inc. called the Merry Mutt # 473. It is a wooden dog who moves his arms up and down to play music on his xylophone when pulled. The whole toy is made of painted wood except for the paper lithographs covering the dog. The red platform he's sitting on is on four blue wooden wheels. The toy is 8" H, 7 1/2" L and 4" W. It is in great condition.
Vintage Fisher Price Merry Mutt # 473