40 degree latitude plate backboard

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40 degree latitude plate backboard.

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ID:	AST0602.17
Type:	40 degree latitude plate backboard
Display location:	Not on display
Creator:	Glenn Ellen Scientific Company
Date made:	1970s
Credit:	National Maritime Museum, Greenwich, London
Measurements:	Overall: 1 mm x 216 mm x 279 mm
Parts:	Astrolabe Astrolabe assembly instruction booklet (AST0602.1) Astrolabe front border (AST0602.2) Astrolabe front latitude plate (AST0602.3) Astrolabe back (AST0602.4) Astrolabe rete (AST0602.5) Astrolabe pointer (AST0602.6) Astrolabe alidade (AST0602.7) Astrolabe latitude plate (AST0602.8) 25 degree latitude plate backboard (AST0602.9) Astrolabe latitude plate (AST0602.10) 30 degree latitude plate backboard (AST0602.11) Astrolabe latitude plate (AST0602.12) 35 degree latitude plate backboard (AST0602.13) Astrolabe latitude plate (AST0602.14) 38 degree latitude plate backboard (AST0602.15) Astrolabe latitude plate (AST0602.16) 40 degree latitude plate backboard (AST0602.17) Astrolabe latitude plate (AST0602.18) 45 degree latitude plate backboard (AST0602.19) Astrolabe latitude plate (AST0602.20) 50 degree latitude plate backboard (AST0602.21) Astrolabe horizon plate (AST0602.22) Horizon plate backboard (AST0602.23) Front backboard (AST0602.24) Back backboard (AST0602.25)