> > I am seeking information, in regard to a string galvanometer > electrocardiograph. It was designed by Charles F. Hindle and > manufactured by the Cambridge Institute Co., Inc. of Ossining, > N.Y. most probably in the late 20's or early 30's. > > Do any of you know if the Cambridge Institute still exists today? > If so, is the address the same? I had hoped, using the serial > number, I could gather more information on this object. > > Should I be seeking another source? > > I would be most appreciative of any information forthcoming. > > Rachelle Blais > Maine Medical Center Library > Archives/Museum Section > Did anyone answer this ? (We've had a technical fault here which puts me a bit behind the times). If this ecg is a Cambridge Instruments machine made in this country (UK), then it will have a serial number with a `C' or `L' prefix. These give date ranges which, in the case of `C' numbers are to the specific year. A list published by a musem group GSTMC gives the details. If you give the serial number a date can be supplied. Tim Boon [log in to unmask]