That is just for the shell of the boat, with the ironwork attached to it.
"Second Shetland Truck System Report"
William Guthrie
Where shall we draw the line, for example, in architecture or in ironwork?
"The Expositor's Bible: The Book of Exodus"
G. A. Chadwick
"Foolish fellow to take gold fever and go off into the wilds after it when he was doing so well with good British ironwork!
"Dick Lionheart"
Mary Rowles Jarvis