[December 1st, 1921] "Tests of the new Armoured trucks of the Post Office Department at Fort Meyer today. The windows and wind shields are of bullet proof glass. This photo snaped [sic] at the moment of impact, plainly shows the fine splinters of flying glass, 12/1/21."
from /r/100yearsago
[1921年12月1日] "今天在梅耶堡测试了邮政部的新装甲车。车窗和挡风玻璃都是防弹玻璃。这张在撞击瞬间拍下的照片[原文如此]，清楚地显示了飞出的玻璃碎片，12/1/21。"