Up for auction is a nice 4 draw monocular marked "Derepas Palis Royal N. 23".  This French monocular predates the binocular opera glasses that you normally encounter.  The base barrel is covered with mother of pearl panels set off at either end by attractive gold washed bands.  The glass measures approximately 3" extended and 1.25" retracted.  When properly extended the glass produces a satisfactory if not powerful image.  The glass comes with its original velvet lined case with working clasp.  Buyer pays shipping and required insurance ($13.00 in continental USA - NO INTERNATIONAL SHIPPING). Payment is expected within three days of the end of the auction.