As you probably know, your beautiful plate dates late 18thC bssed on its Worcester Flight crescent mark.
My research indicates that it would have an estimated retail value of $475-600 depending on sale location.
Online auctions like eBay generally bring wholesale selling prices.
If you would like to sell close to estimated retail, some ideas are:
The internet has your largest audience of buyers. Place small ads on these sites or set up your own small store on these sites.
Etsy.com - small fees - 20 cents to list plus 3.5% final price.
These sites are excellent and more upscale but fees are higher. I only recommend them if you have several items to sell.
A method that could be very effective would be to place a classified in the "Maine Antique Digest" It has a large readership of collectors all across the country.
I highly recommend this method. They only charge $25 for 25 words in a classified ad. This publication is a monthly newspaper as well as on their internet website.
A private seller to a dealer or at auction can expect 30-60% of estimated retail value.
I hope I have helped you.
If I can help you with further questions about this answer, please let me know before you rate me.
All my answers are quoted in USA dollars.
I endeavor to give realistic, honest answers in a timely manner.
Please take a little time to give me a POSITIVE RATING NOW SO THAT I AM CREDITED BY JA for my knowledge, time and effort.
Please do not rate me down because of system difficulty.
Please let me know if you have difficulty with the site's rating system. To rate me, you should see 5 stars near my answer. 5 stars gives me the best rating.
If you would like to use me on any future questions, requesting me expires in a short time. If you put "For Doris Only" at the first of the question, most professionals on the site will respect that request.