The New York production of "Ghetto" by Joshua Sobol opened at the Circle in the Square Theater in New York on April 30, 1989 and ran for 33 performances.
(at around 1h 35 mins) In the final scene, where artists of the Jewish theater were gunned down, MG-42 in Arntgent's (Darius Meskauskas) hands shoots blank cartridges - it's possible to see crimped tips of those cartridges.
In the scene of execution of Jews in the forest Lithuanian militiamen hold American M14 rifles (without magazines) - this rifle was designed only in 1954, and US military took it to the service in 1957.