Bowl with acorn bosses at shoulder, lotus pattern beneath, and rosette on bottom, and with inscribed weight 4th century B.C. Late Period-Ptolemaic Period The heavy silver vessels 18.2.13-18.2.17 are in created in a decorative style widespread in the Greek world, and can be dated to the fourth century BC. They are said to have been found together in the Egyptian Delta. Several of the vessels have small Demotic designations scored into the rim recording the weight of the silver, which correlated with the vessel's value. The larger weight unit was a deben (about 91 grams at this time) and this was divided into 10 kites..18.2.13 has an inscription that reads "...deben 4 kite." Its actual weight is 552.8 grams.. Bowl with acorn bosses at shoulder, lotus pattern beneath, and rosette on bottom, and with inscribed weight 551307