✅ SOLVED patented may 20 1919 no idea

[fmerg]

i have two of these and have no idea as to what they are
at first i thought maybe a valve cover for old car but did not find any thing close on the net
the parts are 2 3/4 inches high and 7/8 in diameter
View attachment 1910403

 

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[Anduril]

I think you might have the top piece of the article described in US Patent # 1304424
Hard to say for sure -- what do you think?

 

[fmerg]

you nailed it thank you