Name/Title
BulletinEntry/Object ID
2016.007.0004Scope and Content
Bulletin No. 23-b printed in U.S.A.
"Mayo Sandhog Equipment"
"Man Locks & Muck Locks"
Mayo Tunnel & Mine Equipment, Lancaster, PA
Four-page fold over to 8-1/2" x 11" 3-hole-punched
Red/Black/White color scheme, numerous photographsCollection
Yuba Manufacturing Collection