International Greek New Testament Project
The International Greek New Testament Project (IGNTP) began in 1926 as a cooperative enterprise between British and German scholars to establish a new critical edition of the New Testament. Early results of the work were critical apparatus of the Gospel of Matthew and the Gospel of Mark produced by S. C. E. Legg in the 1930s.
Source: Wikipedia — International Greek New Testament Project (CC BY-SA 4.0)