This Harrison C. Ryker L1 Vertical Sketch Master Map Making Instrument USMC Case WWII is so cool! It is JUST THE CASE, not the mapping instrument. This case has been well used and is covered in stickers dating back to the early 80s at least. Still a very useful super cool antique metal box/case. It measures 18" x 12" x 10" deep. Missing leather handle.
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