Variable: Info-tag-table-marker
Info-tag-table-marker is a buffer-local variable defined in
info.el.gz.
Documentation
Marker pointing at beginning of current Info file's tag table.
Marker points nowhere if file has no tag table.
Source Code
;; Defined in /usr/src/emacs/lisp/info.el.gz
(defvar-local Info-tag-table-marker nil
"Marker pointing at beginning of current Info file's tag table.
Marker points nowhere if file has no tag table.")