This undated book probably covers the period December 1897-March 1901. It is one of three books used by Albert Wurth relating to electroplated master molds for phonograph cylinders (see also N-91-11-24 and N-97-12-15, Notebook Series). Standard size and concert molds are listed separately. Included are the names of the recording and talent, mold numbers, National Phonograph Co. catalog numbers, and remarks concerning the quality of the mold. Some of the pages contain annotations made by an archivist. The front cover is labeled "List of Moulds and Catalogue Numbers" and "Concert Mould on Page 34." The book contains 198 numbered pages.

Blank pages: 6-29, 32-33, 46-198.