[September 10th, 1921] View inside the WBZ radio station and studio as two women perform live, one on piano and the other singing, Springfield, Massachusetts. Also visible is a man in headphones who operates a dial.
from /r/100yearsago
[1921年9月10日]马萨诸塞州斯普林菲尔德，WBZ电台和演播室内的景象，两位女士正在现场表演，一位弹钢琴，另一位唱歌。还可以看到一个戴着耳机的男人在操作表盘。