Scroll down to the middle here
http://www.picturetrail.com/sfx/album/view/15127852

Mark Dube provided images of a broken straight grip Parker repaired with the 'fillet' method. Looks like it would work with a new butt. You might discuss with David Trevallion 207-361-1130 but the work may not be less expensive than a restock.

Mark Larson has posted some beautiful butt extensions with wood enhancement
http://www.marklarsongunart.com/