Early 1970's booklet transcribed from a sound-slide production on insulator making by Ohio Brass. Many interior factory photos showing manufacture of suspensions, multiparts, substation pieces and fogbowls. Black and white print with 46 pages. Asking $35 shipped or $30 prepaid with delivery to Springfield Show. **** Sorry I forgot my email address shown above is still hacked. Please contact me through FaceBook messenger or alternatively glass_relics@hotmail.com ****** |