ozflea
Good ol' BP Zoom 25-1
The Model 15 was an early attempt by McCulloch to get into the consumer saw business. Basically a 1-43 type power head in a very simple frame with a top mounted fuel and oil tank and rigid construction.
As Randymac has noted, this type of saw can make your blood foam.
The Mac 15 comes up on e-bay all the time, not a particularly desireable saw except for the collector value.
Mark
An early version of the mini mac cheap and as Mark said targeted at the home market .... it was introduction to the Mac range of saws and the very first saw i ever worked on and my first repair at the McCulloch factory in Sydney 30 sumthin years ago ... shake the blood right back up your arms .... well what else would you expect at the price that was asked
McBob.