This is a pretty nice original American Bosch MJC1B-2 1-cylinder base mount magneto for an old garden tractor or power unit engine.   It is in great original used condition with no cracks, breaks, or repairs that I can see or know of other than some handling and cosmetic wear.  It is clockwise rotation.  It mounts with 2 optional sets of holes which are 2 inches apart on center and the mounting threads are in great shape.  It has no noticeable bearing wear and turns over very nicely with good magnetic pull.  It puts out a hot, snapping spark that is sure to run your engine if it is set up properly.  It has the original name/serial tag as can be seen.  This magneto should be ready to go to work on an engine or it could be put on your shelf for a future project.  The pictures tell the story.  I can be reached at 262 573 193 1 if you'd like to talk about it.  Good Luck.