Here is my certed "Lake":
The image is close, but The Lake is darker. Check out the area under the top left "3". When I scanned it originally, here is what I saw:
After optimizing with Photoshop Elements, where you can bring out the pixels, you see the dark violet (almost black) that's defining the "Lake" color:
Now, we've had some debate on the scanning at this high of a dpi, and if Don sees this, I'm sure he'll comment.... :)
I've posted these before-- just thought I'd toss them out there again.
Philazilla, I have a proof with the same color as yours, and thought it was a 66 also, BTW!
Take care, hope this is helpful, Ray