This post made me pull out my piece and inspect it closer. Here is the "mixed" results that I find:

My flag is #28

The rocks are grey

The catwalk and beacon cap are black

The roof is also black

The windows are "less detailed" only a horizontal divider.

The felt on the bottom is green flocked that does not extend to the edge, & there is no sticker.

The ventilator cap has a ring.

It has a brown box with no markings.

At this point I always thought that I had a California mold, but I am starting to wonder if I have an early Canadian mold. I like the idea of taking it to a signing to let Bill advise, but that will be next year for Colorado. Does anyone have some "expert" advice?