First I would like to start by introducing my logo. It comes from my personal collection. This is an unmounted carved shell cameo of Hera (Greek) Juno (Roman) She was considered queen of the gods in Greek mythology. She is pictured in the cameo with her peacock. This piece dates to 1850-70.
  A quick tip about storing or displaying shell cameo’s ~ unlike most gemstones, shells and pearls can dry out and become cracked or brittle over long periods of time or in very hot conditions. They should not be stored in safe deposit boxes, or in a bright lighted (= HOT) display case, anywhere where there is no moisture is a bad idea. One solution is to place a small cup or some container of water inside an enclosed space, where the piece would be stored or displayed. Perfumes, hair spray, and lotions are also damaging to shell pieces or pearls over time. If a cameo should ever become dried or you find one in this condition, a very light coat of mineral oil may be applied then allowed to sit a day or so and the excess wiped away.