[The following note describes a series of notebooks and has no document records attached to it. For that reason, a "no Documents found" message will appear if the "List Documents" button at the bottom of the note is used. To see the records in the notebooks described here, use the "Which Series Notes?" button to enter the Series Notes or use the "Next Text" button to move to the first item in the series.]
These five notebooks were used by Zachariah P. Halpin during 1913-1914 for notes on kinetoscopes, cylinder and disc phonographs, storage batteries, and other subjects.
Three notebooks have been selected.
