This is an Antique Xylophone. The Trademark "S" is stamped on it. It is made of wood and the plates are of metal. It is abt. 27'' long. The widest part is abt. 10 3/4'' & the smallest part is abt. 4 1/2'' wide. as you can see, some of the metal plates are missing, along with the mallets & a piece of wood to raise it on back. That would be very easy to make. It is an odd shape, it came from an Antique shop. I put this out for a yard sale & was told to take it in. They told me that the co. that made it, did not do bulk sales, but made things for individuals that ordered, so they were basically one of a kind items hand made for certain musical groups that would order them.