This journal covers the period June 1890-March 1892. The daily account entries provide detailed information about income and expenditures for the West Orange and Ft. Myers laboratories, Glenmont, and various Edison business operations. The book contains 320 numbered pages. The spine is stamped "Journal. No. 6. Laboratory T. A. Edison, Orange, N.J." It is labeled "7" and "June 1, 1890 to March 31 [18]92."

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This book was microfilmed at a reduction ratio of 16:1.