Do quarters weigh different?

Date: Mon, 3 Jun 2019 10:32:34 -0400
From: Billie Shambley
Subject: Do quarters weigh different?


This weekend I went to the Siler City car wash to vacuum my car trunk. 

I took two dollars in quarters to pay for the vacuum.  I put my quarters in and only three quarters were accepted by the machine. My other quarters just rolled through the machine time after time.  So I took a dollar bill and went to the change machine and got 4 more quarters.  Of the 4 only two more were accepted by the vacuum machine.  Not wanting to lose any more money, I left. No, the machine did not return my money.  So the question remains, why did the machine not take my quarters.
Billie