'Draw' Your Own Conclusion
The Gemara in Avodah Zarah discusses the fact that Rabban Gamliel owned pictures of the moon. The images facilitated the questioning of witnesses who came to testify about the new moon.
Rosh Chodesh
How Beis Din questioned witnesses who saw the new moon, including the use of pictures of lunar phases.
The Gemara in Avodah Zarah discusses the fact that Rabban Gamliel owned pictures of the moon. The images facilitated the questioning of witnesses who came to testify about the new moon.