Collector told me to stop polishing old brass and honestly I'm annoyed they were right
I used to hit every brass lamp and candlestick I flipped with Brasso until they gleamed, then a guy at a flea market in Ohio told me patina is where the value sits and collectors see polishing as destroying it. He pointed at a $5 tarnished doorknob I passed over, said that's a $40 knob if you leave it alone. He was right, I tested it last month and my rough brass bowl sat for two weeks while my polished one sold for less than I paid, so now I only clean dirty gunk and never touch the green stuff. Anyone else get told their 'improvement' was actually ruining a find?
But that guy at the flea market basically told you to be lazy and you bought it, because a shiny piece moves faster to 90% of buyers who just want something clean for their house. Leaving the green crud on is just betting on one collector showing up, and half those guys lowball you anyway.