.emacs poser

[B. T. Raven]

In my emacs I have these global-set-key forms:

....

(global-set-key "\C-cg" (lambda () (interactive) (insert  ?° )))
(global-set-key "\C-ch" (lambda () (interactive)  (insert  ?·)))
(global-set-key "\C-c-" (lambda () (interactive)  (insert  ?— )))
(global-set-key "\C-cI" (lambda () (interactive)  (insert  ?‽ ))) ;; ;;
;; capital eye interrobang
(global-set-key "\C-cL" (lambda () (interactive)  (insert  ?£ )))
(global-set-key "\C-cm" (lambda () (interactive)  (insert  ?ˉ)))
;;(global-set-key "\C-cM" (lambda () (interactive)  (insert  ?̄✠)))
(global-set-key "\C-cp" (lambda () (interactive) (insert  ?¶ )))
(global-set-key "\C-cr" (lambda () (interactive)  (insert  ?® )))
(global-set-key "\C-cs" (lambda () (interactive) (insert  ?§ )))
(global-set-key "\C-ci" (lambda() (interactive) (insert
(format-time-string "%a %Y .....

These and many others work fine (in w32 native v. 23.3) but any attempt
to evaluate "\C-cM" (capital M) truncates the rest of the .emacs and
wakes the Debugger:

Debugger entered--Lisp error: (invalid-read-syntax "?")
  read(#<buffer .emacs>)
  preceding-sexp()
  eval-last-sexp-1(nil)
  eval-last-sexp(nil)
  call-interactively(eval-last-sexp nil nil)
  recursive-edit()
  byte-code("\306      @\307=\203! ......

the glyph shown is the Maltese cross but any character after the ? fails
to work in the same way. Other capitals are distinguished, just not
upper case M.

Does any of you have any idea whats going on here. With just that line
commented out the .emacs loads with no problem.

Thanks,

Ed