O-B bulletin
Series: [Andrew Merrilees Transportation Collection]
Publisher: Ohio Brass Co.
Published: 19uu
Place of publication: Mansfield, Ohio
Language: eng
Notes: Monthly.

" ... of electric railways & minehaulage material"--Cover (v. 7, no. 1- ).

"Electric railway transmission and mine haulage materials"--Cover (v. 7, no. 5- ).

"Electric railroads, mine-haulage and power transmission"--Cover (v. 10, no. 1- ).