Russell Jennings Extension Lip Spur auger bits warranted crucible steel
mgf in chester, conn, usa.
Fig.100 Patented 1855, 1876

Please note that this set includes 6 bits total

A part of the top latch has detached from the box, but is included. 

Bits are marked:
5 - Spurace brand
7 - Russell Jennings
8 - Russell Jennings
No number - Russell Jennings (has a cylindrical not square taper back)
12 - Russell Jennings
16 - Russell Jennings