Copper Candlesticks - Age, Value?

I have this pair of candlesticks, I think they are copper and pewter - I can see some areas on the decoration that is more shiny as if something like silver perhaps was originally on there but the rest of the silver coloured metal does have pits as if it were pewter. I've done the nitric acid test, as far as I can tell it isn't silver. The necks extend as well, also not sure of the date either, was thinking art nouveau. Any idea of value would be great. They weigh 1kg each, the base looks like it's stuffed with little stones before having some type of mortar poured in. I would love to know more about them.
Thank you

 

Can you please include picture of the bottoms, thank you.

 

Deleted to avoid confusion.
I got my crayon out.
Can you send close up of this?
Never mind, @Bakersgma is correct.

 

What do you think is there, Hunting. Just looks like a reflection of the second stick to me.

 

Right you are, Thank you.
I put my crayon away!

 

Stretch sticks

 

And the guy taking the picture too

 

We all make mistakes, and I Humbly accept corrections.

 

These kinda look like yours...http://www.sellingantiques.co.uk/504050/pair-arts-and-crafts-candlesticks-silver-on-copper/

 

What you have is a pair very over polished telescopic candle stick of Old Sheffield plate (fused plate), dating from c1820 to c1830
the silver portions are mounts formed from silver and not from fused plate as are the columns and is the reason they still remain as such, these mounts were often filled with a lead/tin filling and as the silver wears off show the duller filler underneath.
The base was often weighted ,,,non tropic areas, loom, a mixture of fire ash and pitch and tropical regions filled with plaster , or similar.
I can't see what mark??? is circled .
The mounts are somewhat identifiable to several quality makers of Old Sheffield plate items, Cresswick... mark was crossed arrows/spears or Matthew Boulton ..one or two moon faces . .....regards...pewter2

 

The circle can be disregarded. Awaiting pictures of the bottom.

 

Dunno, but they are really sharp looking.

 

VERY, VERY PRETTY!!!!!!!!!!!!!!! AND to me, they look like Brass, Copper and Silver!!!!!

 

They are about the most interesting sticks I’ve ever seen on this forum. I wouldn’t mind having them on the dinner table next time we have guests in; the mixed metals are definitely cool looking even if they were once all silvery.

 

Here it is - thank you

 

I apologise for the rubbish pics, The metal is a definite reddish colour (far more like copper than brass but then I've not seen any brass this colour) maybe it's copper plated. The magnet did nothing on either metal

I've also just retested with nitric acid, no change on the copper part but on the silver it turned red which would indicate a presence of silver. I tested on the stretch part that goes into the base. I do apologise, I've not done this type of test before but thought I'd try again to be sure. Why would someone plate copper (or whatever it is) over silver? - pic shows the stretch "hidden" section where the 2 metals can be seen.

Thanks for the identification of the ballast

 

oh yes they do, thank you

 

Thank you very much for your comprehensive answer pewter2. So what you're saying is once upon a time they were completely silver plate. I can't see any marks on them so am presuming they've been rubbed away. (apologies for answering after I'd answered the others, I blame being left handed, I read from the bottom up etc ... )

 

Can't answer for pewter of course, but I think you are doing perfectly.
And beautiful candlesticks, I think I prefer this look to all plated.