I installed that chromed bronze non-opening port in the forward end of the deckhouse to provide better visibility forward when sailing in rough conditions. Visibility through the two main cabin forward ports are mostly blocked by my plywood pram dinghy which stows between the mast and dodger.

Over the years I've completely rebuilt and modified Atom to suit my needs including:

Deck and Hull:
1. Installed a water can locker at forward end of cockpit footwell.
2. Replaced all exterior wood with teak, including adding grab rails on forward cabin top.
3. Installed a bronze port in forward end of the cabin top for better visibility forward.
4. Replaced rotted mahogany and oak rudder with plywood covered in fiberglass and epoxy.
5. Installed Monitor windvane with custom mounts.
6. Installed Lofrans manual anchor windlass and bow and stern anchor rollers.
7. Replaced bow cleat with 10 1/2-inch bronze cleat and backing plate.
8. Installed custom adjustable outboard motor bracket.
9. Installed rigid bimini frame over cockpit.
10. Replaced balsa deck core with polyurethane foam sheet. I actually replaced the deck core twice! Did a bad job of it first time. Core is now 1/2" mm polyurethane squares 4" square, each sealed indepedently on all sides to prevent future moisture migration.
11. Installed custom stern rail incorporating two solar panel mounts.
12. Added longer jib sheet tracks.
13. Added two stanchion bases and full-length lifelines.
14. Removed propeller and filled in prop cut-out in hull.
15. Built new forward hatch and companionway hatch with stainless steel security bars.
16. Built wood plank hatch cover, or seahood, for sliding hatch.
17. Installed cockpit dodger over companionway hatch.
18. Replaced cabin windows with 8mm Lexan and through-bolted frames.
19. Fabricated a 5/10/15-watt halogen, glass lens masthead anchor light.
20. Attached keel extension plate to prevent lines from snagging between keel and rudder.
21. Affixed rubber gaskets under cockpit seat lockers and installed locking latches.
22. Sealed vertical aft cockpit locker hatch and installed new hatch in afterdeck.
23. Attached sculling oar pin bracket to afterdeck toerail.

Rigging:
1. Replaced fractional rig with 34-foot masthead rigged aluminum spar and new mast step.
2. Installed removable inner forestay, two running backstays and related deck hardware..
3. Replaced all chainplates with ¼-inch stainless steel.
4. Added forward lower shrouds and chainplates to glassed-in knees below deck.
5. Installed Harken roller furling jib.
6. Converted roller-reefing mainsail to slab reefing with three reef points.
7. Installed stainless steel reinforcement plate under mast support beams.

Interior:
1. Removed Atomic 4 inboard engine and its accessories. (Sailed engineless for seven years but now use a 3.5 HP ouboard on a adjustable transom bracket. Later I may install an outboard well in stern lazarette if there's
space.)
2. Built a 43 gal (165 liter) integral water tank under v-berth connected to foot pump.
3. Built a 30 gal (115 liter) integral water tank between cockpit floor and hull.
4. Converted icebox to storage/electrics locker. I use a small portable cooler.
5. Installed valves and plumbing for deck drains to be diverted to a hose below for collecting rain water.
6. Removed door between head and forward cabin and replaced it with a curtain, filled in V-berth and raised bunk 5-inches above waterline for extra storage and watertight integrity.
7. Made most compartments watertight for collision protection and positive buoyancy.
8. Installed a sliding single/double bunk on port side of main cabin. When bunk is slid open the backrest cushion drops down to fill the gap and there's just enough clearance to walk through cabin.
9. Replaced all counter fiddles with 1-inch thick x 4-inch high teak.
10. Extended ex-engine locker forward and removed companionway ladder.
11. Replaced head with Lavac toilet placed behind a watertight bulkhead.
12. Added second bookshelf in main cabin and full length shelves in forward cabin.
13. Covered the plywood cabin sole with African iroko plank strips.
14. Installed six teak handrails throughout main cabin.
15. Installed telltale compass next to port main cabin bunk.
16. Enclosed open lockers behind main cabin settee backrests and built teak locker doors.
17. Installed a shelf divider in chain locker behind watertight hatches.
18. Installed a Henderson MK 5 manual bilge pump in port cockpit locker accessible on seat top.
19. Replaced entire electrical system. (see About Atom for details)
20. Installed lee-cloths on main cabin bunks.
21. Installed shut-off valve in sink drain.
22. Built a radio locker above ex-icebox.
23. Built a fold-down table attached to forward main cabin bulkhead.
24. Installed sliding doors on galley shelfs.
25. Replaced galley drawers with door access and added shelf in locker under stove.
26. Installed two gimbaled kerosene cabin lights.

Most of the above projects are not necessary for most Tritons, but for offshore cruising you may find a few of these useful. For more on Atom's projects you can check out http://www.atomvoyages.com