French Table Candleabra

Greetings,

These have been in my Family for 100+ years;
but I have absolutely no idea for what they should be
Insured.

These beautiful Brass Candleabra are 22" Tall and weigh 10lbs. each.
I believe the base to be of Marble.

Is ir ok to polish these with a household Brass Cleaner?

Any idea?

Sincerely,
Rev. Brady C. Harness