The Children of Israel in Egypt develop quite rapidly, both demographically and economically. A new Pharoh rules over Egypt who, fearful of a rebellion, enslaves the growing and threatening minority. Moses, raised by Pharoh's daughter in the palace, goes out to see the suffering of his brethren. He sees an .Egyptian beating a Hebrew slave and he kills the Egyptian and buries him in the sand.
The Midrash tells us that Moses killed the Egyptian not through a physical act but rather by uttering the ineffable name of G-d. This Midrash is based on the fact that the letter "vav" in the word "vayach" (and he hit) is extended both on the top and on the bottom of the letter.
"And he hit the Egyptian"- the stretched "vav" is as if the text would have said: G-d hit the Egyptian (Rabbi Elazar ben Rabbi Moshe the Darshan, Munich manuscript 212).
In certain Torah scrolls this letter "vav" was bent at the bottom and the proofreader erased this addition to the letter.
A Torah with unusual letters is kosher even though today it is no longer customary to write such letters.
Courtesy of Machon Ot