Contract for Gibraltar (1753)?

Item described as missing when catalogued in the early 1990s. It is unclear as to whether this contract was ever received.
JM, 17/12/2007.

ID:	ADT0038
Type:	Manuscript
Display location:	Not on display
Date made:	Unknown
Credit:	© Crown copyright. National Maritime Museum, Greenwich, London
Parts:	Box Contract for Nimble (1811) and Swan (1811) (Manuscript) (ADT0028) Contract for Diligence (1795/6) (Manuscript) (ADT0029) Contract for Elephant (1786) (Manuscript) (ADT0030) Contract for Elizabeth (1873) (Manuscript) (ADT0031) Contract for Endymion (1797) (Manuscript) (ADT0032) Contract for Falmouth (1814) (Manuscript) (ADT0033) Contract for Fowey (1814) (Manuscript) (ADT0034) Contract for Fox (1780) (Manuscript) (ADT0035) Contract for Proserpine (1807) (Manuscript) (ADT0036) Contract for Galatea (1794), and Tartar (1801) (Manuscript) (ADT0037) Contract for Gibraltar (1753)? (Manuscript) (ADT0038) Contract for Lowestoffe (1761); Specification for Alarm class (1757) (Manuscript) (ADT0039)