There are two kinds of Barge, the good stuff (red can) and the just OK stuff (blue can or tube). I have been using the blue stuff for minor shoe and boot repairs and it is OK. Will probably work for the leather face. It is also probably better than anything else out there, other than the original formula. You can still get the original formula from Film Tools in Burbank CA, but probably only in quarts. Seems it's used a lot by movie types for set construction.
http://www.filmtools.com/catalogsearch/result/?q=barge+cement