Object 3: Sea Glass

May 27, 2021


My final object is the sea glass which I found in the seaside of Ehime, Japan, where I used to visit every year to see my grandparents. It is a piece of broken glass in different colours drifted from a far distance, drifted in the sea, changing its shapes and surface over years. But where does it come from? Who did it belong to? This object enhances the exhibition, as unless there is a specific label on the object, there is no way to be certain about this information, therefore, it is unknowable.

The only information we have on this object is that it was found on the shore of Ehime, its colour and shapes, and the fact that it now belongs to me. Therefore, it is knowable to an extent where we can touch, see, smell, hear or taste, and to know the events after it was found. However, this information is limited, as there is no way to receive the knowledge on the journey of the piece of the sea glass, unless there is a way to communicate to the past, such as letters, language or a specific product that is easily identified.

Red sea glasses for example, are from a glass produced by Anchor Hocking Glass Company around the 1950s. Because red glasses are rare, and were not produced a lot, only 1 in 10,000 sea glasses could be found. Therefore if a red sea glass is found, there is a higher chance that it is from Anchor Hocking Glass Company. However, most of the glass I have found is in the range of light blue to green, which is a common colour of glass produced such as wine or beer. Therefore it is almost certainly impossible to identify where it was produced.

Applying to my prompt, the origin of the sea glass is therefore unknowable as there are no way to trace back the past of where and when it has drifted to this place, however, this could be considered as a fact that we know this is unknowable in addition to the information I have after it was discovered.


  1. (1)  Definition of Knowledge; @2021 Oxford University Press. “Knowledge.” Accessed May 12, 2021.



  2. (2)  Luke 4:40. The Bible (New International Version). Bible Gateway. Accessed May

    12th, 2021.


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