[Specification and arrangement drawings (5) of composite sloops 'Satellite', 'Heroine' & 'Hyacinth' / Admiralty. 1880 Jul-Aug. 6 items (on roll with another): ms. specification (25p.) and line drawings, part with wash, scale 1/4" : 1'. Comprise specification; plans of poop and forecastle decks, of lower deck, of hold (and sections); profile; plan of upper deck. See also inv. no. 1998-828 (MSR 68/1-5 for 'Hyacinth']