I've been excavating a site in Trona,Ca near Death Valley for almost a year. Have found boxes of bottles,most with mold mark stopping at the base of the neck. Most I've been able to identify thru Google search or Ebay. But the Mayerle Eye Wash bottle I found yesterday remains a mystery. None of the bottles I've found had been turned purple from the manganese and sunlight. Meaning they were disposed of then quickly buried by wind blown sand.