This covered butter dish is not original carnival glass, but it is vintage...late 50's/60's I believe. This pattern called HERITAGE is still being made by the L E Smith Glass Co, but no longer in this iridescent Carnival Blue. It is signed LS and is in perfect condition. The base is 6" diameter and it stands 5" to the tip of the lid. Very well done piece and displays well..We generally ship to domestic customers by USPS Priority Mail, so buyer will add $5.20 plus applicable insurance.