Thank you Friedrich Berthold and David Delich for these images.
The alternative is something that professes to contain knowledge, but does not at all. Such a thing harms everyone, a fact that underlies my commitment to this website, and my gratitude to its fine citizens, especially its able moderators.
David Delich distinguishes himself from others with his unstinting willingness to share as well as his consumate lack of affect. I am familiar with other collectors and enthusiasts and or researchers, who are very hostile to our pursuit and withhold what they have for whatever reason. Of course, no one is obligated to participate here, but
the enabling of the beginner to make sense of all of this as well as the informative, albeit nonlinear exchange between the more experienced about complicated issues contains merit for all.
David Delich has contributed enormous benefit to this site, and I thank him each day.