Antiques are a tough sell in this region. I often recommend that the owner find a charity to donate to, and I write an appraisal for the retail value; the deduction could be worth more than sale proceeds would generate. I happen to need a rug for my new loft, so if you want a quick sale...
I don't charge a fee per se; right now we are buying 90% U.S. silver for six times face value, so a quarter becomes $1.50; and a dime, 60 cents. Silver is strong and we might be able to do a little better if it holds!
What kind of appraisal, why do you need it? E.G., estate, insurance, liquidation? Give me your number, I'll call you to discuss options. I write very professional appraisals, and am meticulous in my research and description, provide value; can give you references or samples if you wish. I can also prepare a marketing/sales plan.