- Large and small letters - example: the large Bet of the word Bereshit.
- The inverted Nuns in the Parsha of Vayehi Binsoa.
- The splitted Vav in the word "Shalom", in last week's Parsha.
- Dots on top of specific words like "Hanistarot Lashem".
The Meiri compiled a very detailed work (Kriat Sefer) on the odd letters, depicting the oddities of the Torahs of his time. A more contemporary Sefer was written by the Badei Aharon roughly 150 years ago. There of course the ancient Sefer HaTagin (see image) , which according to tradition was copied by Eli HaCohen from the 12 stones of Yehoshua Bin Nun over two thousand years ago.
What are these letters? Various Geonim, Rishonim and Achronim have mentioned these letters and among them, the Rambam simply says that this is a very old tradition that should be observed. Few elaborate on the reason behind these oddities but the fact is that there was such a tradition and at some point this tradition was lost.
But before the Second World War there was this "in-between" period where some communities accepted this tradition while others were very critical of it, arguing that this tradition was rather unreliable.
This controversy gathered more attention when an old Torah scroll written by Beit Yehuda, a famous rabbi, was found to have numerous otiot meshunot. Also the first Rebbe of Zanz reportedly wrote his Sefer Torah with unusual Otiot Meshunot, and in both cases even those who didn't approve this Minhag were afraid to say bad about these Torahs, given their exceptional importance.
Following the devastating events of the Holocaust, few antique Torah Scrolls remained intact and the Mesora of the odd letters was wiped out alongside with the European shtetls.
This topic is of special interest to me since I'm planning to start writing my own Sefer Torah soon. All these scribal oddities are so interesting and did feature in the Sifrei Torah of previous generations so I got to admit that I felt tempted to add some of these oddities in my writings.
That's why I decided to study Rabbi Ratzabi's authoritative sefer on this subject, featured in the Torah Shelema, and now that I finished learning it I have another approach to this subject. Rabbi Ratzabi doesn't says if scribes should or shouldn't write the Otiot Meshunot but he somehow expounds how confusing and complex this topic is and it becomes clear that whoever decides to write the Otiot Meshunot will be putting himself in a sea 0f possibilities where there isn't a clear path to follow. That is the danger of following a Mesora that isn't yours; it's almost like inventing a Gezeira Shava out of your own mind, which is forbidden.
The very few oddities that have been preserved in our scrolls have resisted the test of time and are our only undisputed Mesora. Here and there I hear of people talking about bringing back the Mesora of Otiot Meshunot but this page was turned after the Holocaust, as I noted above. Whatever is left of it is a living testament of the richness of the field of Safrut and how it evolved over centuries of Exile and persecutions.