BSA No. 68 Single Spindle Automatic Screw Machine: Operator's Hand book.

BSA Herbert No. 68 Single Spindle Automatic Screw Machine: Maintenance and Dismantling Manual.

BSA No. 68 Single Spindle Automatic Screw Machine. Spare Parts Manual with Sectional Drawings.

BSA Herbert Single Spindle Auto lathe 48, Operator's Manual also useful to help with the 68, 98L, 138L and 168L 

BSA Single Spindle Auto Lathe 48 Maintenance and Dismantling Manual also helpful with the 68, 98L, 138L and 168L.