old Delco Instructions / Manuals - covering instructions for the adjustment of:

— Ignition Relays

— cut-out relays

— seating motor and generator brushes

and

Instructions for undercutting the Mica on commutators.

This listing is for Lot of 4, these instructions are from- 1919 & 1920 and are hard to find. All four are in great clean condition. Thanks