I just went and checked mine, and I was wrong. It's not the T3. It's a "Supergrind" and has the 10" wheel. So, I suspect it's the same model as yours. It's green instead of blue and I've had it for 10 - 12 years.
Yikes, I didn't know they had gone up so much in price. But they are great.
That's what mine is. I hadn't noticed that they changed the color, but you are right - mine's green too.
I too was surprised at the prices I see. My wife bought mine for me so I don't know how much it cost. I wouldn't have thought as much as the current prices, but she says it may have been close to that. She also says my estimate of age is off - it's more like 12 years +.
Terry