Front View: Pretty much looks like a typical spencer. Featuring a pop-up collar and a closed front.
Close up of Collar: Two things I noticed: there doesn't seem to be a visible seam for the collar, suggesting that the front piece is one piece; second, there is some decorative stitching along the tip of the collar.
Frog Detail: For the longest time, I had a hard time trying to get a good picture of the frogs that secure the front together. Here is a tolerable picture, but it's still pretty hard to see.
For more pictures of Frogs, this link to The Jane Austen Center's website might be of some help. Perhaps a mixture of the first picture of the millitary coat and something in the last picture?