Hello vint-mow

These are very helpful points!
Your 4 points should be noted and applicable to spray-pack Hammertone users.

I don't know the 'Hammertone' orgin.
I have a UK Ladybird rotary that used the 'Dimenso Process'...
https://www.outdoorking-forum.com.au/forum/u...AIR_Ltd.:_c1940s_-_The_La.html#Post52317

Thanks for helping the record.
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Jack