Whatever this imaginary vessel is, it is fun and in this illustration it is sparking romance.
Can't you just hear a throaty voice over the sounds of the steam engine saying, "How about a............ light big boy?" as the charming captain catches the come hither look from his coy passenger as she lights his cigarette.
Well now wait a minute! What is our charming captain up to? The boat is beached with the anchor overboard in the sand and yet he is busy steering and the steam engine is puffing away.... must be steering his love to her heart! Oh.....the romance of yesteryear, have to love it!