How do I clean a very old, solid brass lamp that is absolutely filthy?

There are so many different opinions on the net! I wondered if any of our trusted talkers have done this and with what result? The lamp is actually a standing chandelier and is very intricate. Also, does anyone have an idea of value? Of course this is one of my CL finds.

How To Antique Shiny Brass Lamps - Sincerely, Marie Designs

How to restore an antique brass lamp - Quora

How To Clean Brass - 6 Tried & Tested Methods That REALLY work

Bougeoir bronze 3 branches 4 feux, Selency

Spiders on the deck and patio. What can we do about them?

How to Clean Brass and Restore Its Lustrous Shine — Bob Vila

How to Clean and Get Rid of Smell on an Old Wood Rocker

Dried on grout

DIY Tutorial: How To Clean (Really Really Dirty) Brass Hardware - A Storied Style

VINTAGE BRASS LAMP RESTORATION

Table Lamp Antique Brass Sea Flower Lamp 13 H x 4.5 W | Renovator's Supply

Vintage Brass Stiffel Trophy Lamp (no shade)

Painting Brass Lamps in 5 Easy Steps

Vintage Brass Lamp – Yellow Verandah

OK Lighting 14 Brass Touch Lamp with Frosted White Flowers, Table