Strubel Identifcation Help

Hello.
I'm starting to dive into my Strubels a bit more and I'm not real clear about some of the unique identifying characteristics that might assist me in making the correct identifcations. At times, it's hard to determine what the thread color actually is and some of the color shades are hard to match with what I'm looking at in my Zumstein book.
Was curious if anyone could help set me straight on these. If there are things about these that make them stand out one way or another, I'd love to know.
Thanks in advance.

Ah, a hot cup of coffee and a warm slice of strudel is the perfect—never mind, I misread the thread's title.

Don't forget the custard (the subject of complete incomprehension in France, even amongst those that offer le crumble).

One place that could possibly be of service is www.swiss-stamps.org , the website of the American Helvatia Philatelic Society


Peter