Aretino Records
Aretino did not make any of its own recordings: it borrowed masters from other companies. The first series of Aretino records had music on only one side of the disc. They were each given a catalog number beginning with the letter A. The music was recorded on them by Leeds & Catlin. Leeds and Catlin also made a group of records for Aretino with catalog numbers starting with the letter D.  These records have a recording on both sides.  They are very hard to find now.  Leeds & Catlin was later shut down by court order for patent infringement. After that, Aretino records were made for a short time by two record companies named Hawthorne & Sheble and Zonophone.  These companies kept making records which only had music on one side of the record. They also kept using catalog numbers beginning with "A".