street, ward, town, counter for guns, tools, leaves or cakes of something, even number, 4th calendar sign

私が見つけたのは１丁のハサミだけだった。

I found nothing but a pair of scissors.

合衆国では２億１６００万丁もの鉄砲類が、民間の手にあるという。

In the U.S., as many as 216 million firearms are said to be in private hands.