Age of Gemeinhardt Piccolo

[flutist321]

I was wondering if someone could help me find out the age of my Gemeinhardt piccolo and what year it was made. I recently purchased it (at a shop and the piccolo is used) and it's made of grenadilla wood. The serial number is 84100 and there's a diamond on it that looks like this <C> that's on the body. Also, I believe it's their 4P model, but I'm not sure if I'm right.

Thanks in advance,
Jade

[JButky]

4P made in 1987

Mode First Last Year
4P 84085 86599 1987

[flutist321]

thanks JButky, but I realized I by accidentally typed 4P instead of 4W or 4WSSK. Also, is there a way to tell the difference of looking at a piccolo that's a 4W or 4WSSK (btw, there is some tarnishing on the keys).