This pineapple mark is that of Ellis Barker (also known as Barker-Ellis)
of Birmingham, England since 1931. They began selling in the US using this pineapple
mark on silver plate in 1912 and eventually became a division of US-based Towle Silversmiths.
This is a silver plate reticulated edge tray made circa 1915 with corner shields (for a monogram),
ball feet and engraved flourishes on the bed of the tray. While silver plated items do not usually
garner a high price, this one is a magnificent example and would have a current value of $125 to $150 retail.
Some sites that I recommend for selling are Varagesale.com, Ioffer.com, OfferUp.com, Ebay and letgo.com.
You can also go to invaluable.com or liveauctioneers.com and search their directory for an auction house near you and consign to them.
To finish, I will need you to click the five stars at the top right of your screen and hit the green submit button, thanks!