SILVER CANDLEABRA - where to look for marks?

I saw a very tall and heavy candelabra today in a goodwill store which converts into a single candlestick. I looked briefly for marks but couldnt find any in the obvious places; the base was covered with a green felt pad, and there were no marks around the foot.
It was not an elaborately ornamental design, so nothing caught my eye as far as stamps were concerned. Is there somewhere else on the piece I could check that I might not have thought of?

 

Anywhere, really. They can hide in the most impossible places, and some are tiny.

 

Looks like I may need to go back tomorrow and take a better look. There was someone hovering around today. Could they possibly be inside the candle "cups"? Probably the only place that escaped my quick check.
Even if electroplated or weighted, I should imagine theres a stamp *somewhere*, right?

 

Not necessarily, depends on where and when it was made.

 

Tall, heavy, green felt on the bottom. Convertible. No visible marks.

Silverplated and probably had a sticker label at one time.

 

I agree with Bakers.

 

Yep - probably plated.

 

Ok thank you! Worth one more look but I suspect you all might be right!