After a discussion with MikeM regarding the Masorah parva I decided to start reading Kelley's The Masorah of the Biblia Hebraica Stuttgartensia .... When I came to the subject of the inverted nun and checked the reference given, I noted that the inverted nuns there (which I think would more appropriately be named "reversed nuns", but convention prohibits) are not inverted nuns but plain ordinary garden variety nuns. I checked Charmap under SBL Hebrew and noted that the character is present. Why was it decided to print normal nuns with a note that they are inverted nuns?