Been trying to figure why a handle would be needed!
When mommy only has 1 bed warmer ... but 2 beds that need to be warmed up.
Of course the richer dudes n' dudesses had their servants .... and their servants warmed their beds just before they got under the covers.
Ya gotta remember, pre-1950's, very few bedrooms had a "heat source" in them. And pre-1900's ...... hardly any to virtually none of them did.
For
the few lucky ones, the most common heat source was a wee small natural gas (NG) burning "heating" stove. Here is 1 of the many different ones that could be purchased.