Any ideas about this object that is marked "non-splashing pail"?

[Thanks for helping]

Hi. Any ideas about this item? It looks to be a porcelain ceramic. The total diameter is about 10.5 inches. The diameter of the hole in the center is a little over 2.5 inches. The total thickness is about 2.25 inches. On one side are the words "non-splashing pail" and a reg no (? registration number) 366443, which - if I am not mistaken - was first used in the year 1900. One of my biggest questions is which side goes up. If the side with the letters/numbers goes up, then it might be the lid of bucket or pail. (I don't have that piece). If the side with the letters/numbers goes down, then maybe it is an old dentist's spit basin (spitoon). Or is it something entirely different? Appreciate any ideas. Thanks.

 

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[GoldieLocks]

The top of some sort of in home port o potty?

 

[Thanks for helping]

The top of some sort of in home port o potty?

Maybe, but not like other vintage urinals and bedpans I have seen.

 

[vpnavy]

I searched Google using the terms "non-splashing" and "lid" - found something close - maybe this is similar?

"...no-spill dog bowls for sloppy drinkers..."

Notice the top of this "thing" reflects...

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[Thanks for helping]

Perhaps. Thanks.

 

[boogeyman]

The top of some sort of in home port o potty?

My thoughts too. Be a good urinal as long as the wind wasn't blowing. And your aim is bettern mine!