i'm sorry if the pictures are not the best. the glare made it hard to photograph. along with the fact that it is hard to see with microscope from straight on is why I didn't take photos of all reverse.
Here is a suggestion. You have the coin and you have (?) a hand lens of 5X to 10X. Whenever you examine a coin, you MUST tip it back and forth while you rotate it (turn it thru at least 180 degrees) at the same time you are looking at it thru the lens. What that does is allows you to tell if what you are looking at is raised up or sunken into the surface. Now try that and tell us what you think. BTW, the nick on the door post probably indicates a hit on the coin, not something that was on the die.
I may have not been clear in my title. that's my fault. is it a die scratch? or a die gouge? is there a difference between the 2? and it is a raised element.