scrollbar-width
scrollbar-width is defined to be a specifier
:#<natnum-specifier global=<unspecified> fallback=#<natnum-specifier
global=<unspecified> fallback=((nil . 15)) 0x171> 0x16f>
In xemacs-21.4.3/lisp/term/sun-mouse.el scrollbar-width is defined:
(defvar scrollbar-width 5
"*The character width of the scrollbar.
This would appear to be a bad thing ©.
-jeff