Before moving along that backbone into the library, the vast expanse of its interior is first introduced, spied through a porthole cut in the wooden panelling.
Bronze or brass portholes and the porthole doors are always made in brass foundries.
For example, the portholes may be closed and shaded to prevent any possibility of light showing out, while in the ordinary way those portholes would be left open.
These are flying boats, with the hulls of boats, with portholes and anchors and many of the properties we associate with a ship upon the sea.
One is not allowed to open a porthole without an engineer coming along about it, and the reason is fear of upsetting the balance of ventilation.
So far as daylight is concerned, it is possible, without unduly weakening the vessel at the fore end, to give it very much larger portholes than has been the custom.
Glass portholes in the deck provided natural light for the interior of the ship; in action these were covered by iron plates.
The white-painted faade has some nautical-themed windows in the style of portholes, long horizontal glazed areas facing the sea, and fully glazed balconies.
