grating, objective

grating, objective. This item is part of four telescope objetive gratings which can be found via the Whole/Part toggle (AST1033.1-AST1033.4).

ID:	AST1033.3
Type:	grating, objective
Display location:	Not on display
Creator:	Unknown
Date made:	Unknown
Credit:	National Maritime Museum, Greenwich, London
Parts:	grating, objective grating, objective in box (AST1033.1) grating, objective in box (AST1033.2) grating, objective (AST1033.3) grating, objective (AST1033.4)