Enlarging rabbets

Enlarging a rabbet by hand, no "electric Beaver".  I clamped a straight edge, and scored the line where I wanted to remove the waste. Then using a paring type chisel I removed the waste almost to the bottom. As I got close, I removed the straight edge, cutting freehand. About an eighth inch from the bottom, I use a rabbet or bullnose plane to clean up and finish.