This model in the sizes noted is highly polished and then lacquer coated for longer shine and weather protection.
These are very suitable as working windows in many structures.
Porthole housing has individual clamps that hold glass in tight, so you are always able to remove glass to feature anything 3 dimensional inside of the working porthole. Depth varies up to 3 inches at the porthole clamps.
The brass rivets are beautiful accents. Three countersunk holes for mounting (covered in photos by hinge and clasping hardware in photo). Mounting screws not included.
Note: Sailboat logo in larger photo is not etched; just our store watermark in the photo.
These lacquer coated, highly polished portholes would be a very nice gift and we have them in both 8" and 11.5" diameter.
Example of measurements: for the 8" porthole has 4.5" of glass showing. Then when you open the porthole, there is a 5.5" opening and the glass thickness is 1/8".