I Need Your Expert Opinion This 2019-D Guam DDR

IMO...it all looks like MD to me

On images 4-7 on the fist post, what you are seeing on the tops of the devices is called Metal Striation lines. These occur from the edge of the devices slightly moving during Machine Doubling. The lines are the edge of the dies devices rubbing on the coins devices. They are interesting, but not a premium. If you have a warm stick of butter and a pairing knife, you can hold the blade vertical and slide it across the top of the butter. You will see the rough edges of the blade leaving lines across the top of the butter. Those are striation lines. Of then seen on MD coins:






Always a sign of metal move movement on the devices.