A rather nice print of a 1917 Bosch Seismograph for sale on eBay at http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&tc=ps&item=188361549 The 2-wire suspension is reminiscent of recent discussions on the PSN net. _____________________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>