I stumbled across an original, vintage manual booklet from 1933 titled "The Regular Lock Stitch Wax Thread Machine Instructions". The machine is more commonly referred to as the Landis #1.
Since I couldn't find any PDF versions of this manual online, I scanned it to PDF for fellow LW folks: Landis_1_Manual_1933.pdf
I decided to format this PDF for digital viewing only - I added a watermark and disabled printing. High quality printed booklets without watermark ($10) and the original ($