The blue diamond is larger than the later clips, and the enamel used is of a lighter blue color.In addition, the clips are plated over a brass base and are die struck, resulting in a negative image on the back. In most examples, the filler will be the standard aluminum speedline filler used on the Vacumatic line of the time, although not all "first year" examples have the speedline aluminum filler.The coral reefs are artificially made, but the whole place is very much ideal for swimming, fishing, and boating.
However, if one will just look around more, they will find that there are other less-known but equally beautiful beach spots in other parts of the Philippines.
In Pagadian, in particular, there are beaches and islands that will make one believe that there is such a thing as a secluded paradise on Earth.
It should be noted that aluminum jewels can look very different depending on wear and age.
New Old Stock pens have aluminum jewels that will show machining lines.
As they wore, and due to the softness of the material, they became shiny and lost the machining lines. The clips on "first year" pens are also rather unique.
They actually resemble the Parker Vacumatic clips in use at the time.
A nice place to start would be the Dao-Dao Islands some seven to ten minutes away from the seaport, when riding a motorboat.
It is a rather big island, with an area size of about 1.1057 hectares.
It is also rather common to find "first year" pens with just a barrel aluminum jewel and a plastic cap jewel.
It seems as it Parker ran out of cap jewels first, and continued production with whatever was available.
There is also the White Beach that, as its name suggests, is a stretch of white sand beach just minutes southeast of the seaport. The clear, deep, blue waters (even during low tides) are excellent for swimming and diving.