Subject:Re: Coral Red ware bowl
Posted By: Bill H Sun, Jan 06, 2019
It may be relevant that red and brown ground porcelains of the Jiaqing Reign (1796-1820), which overlapped with the Qianlong Emperor's lifetime, featured some similar gilt designs as seen on your bowl. These two marked Jiaqing-period plates, each about 9.75 inches in diameter, came to the USA in the early 20th century with missionaries returning from China, who reportedly said they were presented by appreciative converts, who'd inherited them from ancestors alive during the Jiaqing period.
There's no way to prove the provenance as told, but the marks do appear to be authentic.