Had my car washed at a car wash in West Quincy, Massachusetts. As I am waiting outside for my car to come out of the washing bay, I looked up at the very clear blue sky.

Noticed what appeared to be two seagull type birds at about 100 feet circling each other.  When I looked to the right of the birds I noticed what I thought were two other birds circling each other at a great rate of speed, but I realized that they were much too high in the sky to be birds.  Would say they were well over 50,000 feet directly above me nearly 90 degrees vertical from the horizon straight up.  It looked like the two objects were putting on an air show very high in the atmosphere.
Took out my I Phone to take a picture after one of the objects banked and the sun bounced off of the object revealing a narrow triangular shape body with what appeared to be almost corrogated vertical lines on the side of the object.
Just before I snapped the picture the object disappeared like the light from a light bulb disappears when you turn it off.
The other person waiting for their car said there had been UFO sitings in New Hampshire yesterday.
Again, when the object turned it revealed a thin triangular shape with corrogated vertical lines evenly space along the entire side.
Attempted to take a picture with my I Phone and both objects vanished seconds before I could snap the picture.
Weather conditions. Sunny and clear blye sky.  
Time of Day: 11 AM EST.  
Date: July 24, 2016. 
Location: Centre Street West Quincy, Massachusetts.