A beautiful car, but the best way to find out how the market values the car, is to start with a low opening bid but put the reserve wherever you want it. It will bid to the amount the market values the car.
A one paragraph description and 10 pictures is not going to sell a $50,000 car...any car, let alone a Model A Coupe.
The "appraisal" means little to nothing. Appraisers know who their customer is

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The description says that it is Chicle Drab/Copra Drab. You could have fooled me.