Saw this reservoir on eBay - maybe a good fit for someone needing one.
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Name:	Trico WW reservoir..jpg 
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https://www.ebay.com/itm/Vintage-NOS...EAAOSwnb5dfspl
not mine.


I do have one of the related brackets posted:
https://www.ebay.com/itm/14306472334...84.m1555.l2649