Drawings (3) of ships "Hellespont" and "Propontes"

[Drawings (3) of ships "Hellespont" and "Propontes". 1864. 3 sheets (on roll), line drawings, one with wash and one part with wash, scale 1/4" : 1' (& 1" : 1'?). Comprise rigging plan, longitudinal section and main deck plan (bearing stamp of London & Glasgow Engineering & Iron Ship Building Co. Ltd, Glasgow & Govan), lines]