Description
Heinze, S., Pneumatic tube systems, their technology, application and maintenance, 1956, morgana edition, Volume 5 of the studies and sources on the history of pneumatic tube systems, reprint, hot off the press #70867
Heinze, S., Pneumatic tube systems, their technology, application and maintenance, 1956, morgana edition, Volume 5 of the studies and sources on the history of pneumatic tube systems, reprint, hot off the press #70867