Portlights Produced after October 1997 (with the exception of the Old Standard) have Lewmar, the name of the range, the portlight size, and a date code stamped on the acrylic.
Atlantic Portlight- Produced 1994 to date
- Alloy frame around acrylic
- Metal push to close handles
- 1 Frame joint in outside of portlight
- Alloy interior trim
- Produced 1997 to date
- No frame around acrylic
- Plastic handles and hinges glued to acrylic
- Plastic push to close handles
- 1 Frame join on outside of portlight
- Interior ABS trim clips into place