I was out on my east deck, with a cigar and whiskey, enjoying the evening when a saucer shaped object crossed from the west to the east,moving silently and very quickly across my field of vision. It was thick on the rim, as though there were a couple of saucers stacked together. It was also quite thick at the center, with a curved shallow dome configuration, top and bottom.I was struck by the fact that there appeared to be navigation lights flashing around its rim. This led me to think that , perhaps, this was a vehicle built in the USA.Its surface, as I recall, was shiny and silvery in color. The object quickly passed my area of observation and passed beyond the trees that form the margin of my area of observation. Since this is not the first time that I have seen UFOs, and not the first time that I have considered the possibility that we are not alone in the universe. I was somewhat elated to see what appeared to be a UFO. However, since it had flashing lights around its perimeter, I decided that, likely, I had seen a product built here, on planet earth.