Louis 14th Covered Jar, Imperial
Imperial's pattern 176, these jars are found in marigold (Rubigold), smoke (Peacock, shown), amber, and yellow. Any of these colors except yellow sell on eBay for $20-$30. I've never seen a yellow example sell, but suspect they are worth somewhat more.
In 2006, Cindy Padilla sent me a photo of her yellow Louis 14th covered jar.