If I am seeing it correctly, it looks fluted. Its a nice cap but I don't think it the original one as they were smooth. Nice looking cap however. Not sure I'd change it. Galazan does sell a repro and I have used one.
I have a high grade Knick that has a cap very similar to yours.

Last edited by Walter C. Snyder; 04/17/11 02:57 PM.

Walter c. Snyder