The following people deserve alot of credit for creating the
numbering systems and some of the standard terms used in this and
numerous other web sites, publications, etc. If you know of other people
that deserve credit, let me know, so I can add them.
N.R.Woodward- CD-Numbering system
Bill Mier- Insulator Arial font
John and Carol McDougald-
Marilyn Albers and N. R. Woodward- Glass Insulators From Outside North America
Jack H. Todd- U-Numbering system (Universal Style for Unipart Porcelain)
Elton Gish- M-Numbreing system (Multipart Porcelain)