Rubber Exhaust Port Plug

[Dick Pacini]

I seem to recall back in the early 70's, the OS Max 35 came with a black rubber plug for the exhaust port.  Does anyone else remember these?  I would like to obtain a few, if possible.

[dale gleason]

The OSMax 35s of the mid-fifties came with a rubber exhaust plug for the exhaust and also one for the venturi, a good idea that has fallen by the wayside. dg

[john e. holliday]

Good ole paper towels and rags have replaced the rubber plug.   The plugs kept disappearing or were lost.