A pair of samovar

A pair of samovar (samovars? samovarim?), complete with burners at the bottom.
Made in Sheffield, silver plated with a maker's mark of EHP which stands for E H Parkin & Co.

I cannot date them from the information to hand.

Not used for years and years, now being prepared for sale on a well known auction site.
One has been cleaned, the other awaits elbow grease.