I have an old copy of the old Ktav edition of "Tikkun LaKor'im, which was published in 1946.
It was printed using an copy of a hand-written Torah, of unknown provenance.
The problem with it, is that there is an ERROR [in the hand-written part] in Parshat Vayakhel (Shemot 35:11), where instead of "את קרסיו", it erroneously reads: "ואת קרסיו":
Does anyone know if the error was repaired in subsequent printings?
In the same edition (1946) I have found another ERROR [in the hand-written part] in Parshat Noach (Bereishis 8:4), where instead of "ותנח התבה", it erroneously reads: "ותנח תתבה".
Note: In the edition which is found on HebrewBooks.org, the error seems to have been corrected.