5" x 3.5"
Says, "Mediterranean shipwreck, carriers of wine 8th Century B.C." and it's from the Ashkelon Excavations in the Mediterranean. Interior of shiny brown and exterior green matte glazes assembled from refined materials. Thumbwell of sea-glass.
Drips of melting mud cross glaze from refined materials and pool with crystals worth a study -- reminds me of slow changes of landscape that happen in 'deep time'.