Survey chronometer hand set key

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ID:	ZAA0109.4
Type:	Survey chronometer hand set key
Display location:	Not on display
Creator:	Unknown
Date made:	Unknown
Credit:	National Maritime Museum, Greenwich, London
Measurements:	Overall: 50 mm; Diameter: 7 mm
Parts:	16484 (Survey chronometer) Survey chronometer case (ZAA0109.1) Survey chronometer case key (ZAA0109.2) Survey chronometer; Winding key (ZAA0109.3) Survey chronometer hand set key (ZAA0109.4) Washer (ZAA0109.5)