Thistle2

I accompanied Sammy on his walk with the dog as far as the coppery little item and sat for a bit as a break from the computer world. The first time I was attracted by the prickler there was a little beetle on it with very similar coloration. Anyway, thanks to that little session I am beginning to understand the construction a bit better. It is still a bit of a mystery how it all works in 3D, but I must get back to work now.