Brass Candle Sticks - what date ?

Hi

I need your help to put an age on these (presumably) old candlesticks please.

They are 22cm tall, no seams but feel heavy. The brass on the base feels quite thick.

From the colour, I think they are made of "rose brass" - high copper content.

My guess is they are from circa 1800 - but then, Im no expert and they could have been made in China last week!.

Any advice would be appreciated

thanks

Paul