1812 navy button !

[rip]

I just got around to cleaning the old buttons that i found a couple of weeks ago.I was looking along the susquahanna river when i found a spot with broken bricks/glass etc. in a cornfield.I did a quick search with the detecter and found 8 old buttons and some musket balls.I set them aside when i got home and this morning i decided to clean em up and 1 turned out to be a navy button ! I have found several artilary buttons but this is my first navy button.I found a picture of one on the internet but the shield is different,mine is oval with a flat top,and the other is an oval shield.(both have an anchor on the shield) also the shank is reverced I was wondering if anyone would be able to help better id this button.Thank's HH !