Does anybody know what this is ????
http://cgi.ebay.ca/VINTAGE-PRESH-R-MATIC-CO2-FOR-COLEMAN-LANTERN-200A_W0QQitemZ330311563868QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item330311563868&_trksid=p3286.c0.m14&_trkparms=72%3A1215%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318