Hi shanxi,
Good question.
Your question is actually about 50% of the way "there". In other words, about half of it is missing. I'll explain.
Coins of
Augustus (both Imperial and
Provincial) are one of my specialty areas of collecting. If I didn't have a similar specimen, I
still may have immediately recognized this
type simply because I am familiar the
Augustus version of that
type. You don't have to have an example of a
type to be familiar with it, especially if it is in one of your specialty areas of collecting.
Now, if it was a situation where I didn't have a similar specimen and I wasn't familiar with the
Augustus version of that
type (both conditions true), then I may not have immediately recognized it.
That being stated, this is a distinctive and unique
reverse type. I would assume that other
Forum members also immediately recognized that
type.
In my mind, this is an easy coin to identify. On a
scale from 1 to 10, in terms of difficulty in identifying it, I'd rate this
type a "2".
I feel that coins with generic
reverse types are more difficult to identify.
Meepzorp