Hi jonesy and ODK members,

I really like seeing this 'farm stuff' restored, and what a great job!
A quick search showed that some of these pumps were made in OZ under licence.

Some dating material may be found under this search criteria: post 1925; by relevance:-
TROVE Search

Also, there is one on eBay at the moment.
eBay Myer Pump

I found a nice 1940 photo here:
Museum Victoria

I now know what a Myers Orchard pump looks like.
I hope you find that cover to finish your restoration.

All very agricultural.
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JACK