The pen capped:

The cap unscrewed:

The cap trim-ring is made of a black ebonite ring:

The cap end-jewels made of ebonite:

I bought this pen mainly for its rich green mottled pattern and ergonomic grip. The photos are not able to convey the correct color of the Ebonite. The only thing that does not go well cosmetically with the pen is its clip, I wish the Deccan people find a better suited clip for this nice pen.
Comments are welcome.
Cheers,
Hari
Ed: Manufacturer info added.