I think your confidence in me - at least for sticks - is misplaced Chris
- wish I did know something about them. I did once collect pressed examples, but they all went back to the charity shop.
The more simple a design then the more difficult to date, possibly. Hollow stems and polished pontil scars are not specific enough, although sharp cutting would suggest pre c. 1925.
I would have thought it easy enough to tell whether a solid or hollow stem - would make a great difference to the weight, and Adam says they are not heavy.
The design of these.... traditional baluster shape, with undecorated feet and largish sconces, follows a style that seems to have been not uncommon around the late C19 and perhaps into the C20.
My thoughts are ... not deco, they lack the sharp linear features or angular shapes - possibly not quite the age you are suggesting though.
Candlesticks come in a staggering variety of shapes and styles - often reflecting the period in which they were made - and then there are the 'neo's' - the copyists get everywhere, just to confuse us.
Few people seem to collect sticks, at least seriously.
I'd agree probably a non-starter finding both a maker and country of origin - but they're attractive and worth keeping.