# 1 is a New York Militia plate, maybe c. 1815-35. I don't recall seeing this particular variety before, but the period style and New York State eagle-on-globe device are unmistakable.
# 2 is a c. 1845-60 Militia panel plate.
# 3 appears to be civilian, ornamental, explicit, and utterly self-explanatory.
The Militia panel plate (item #2) is worth about $300-350.
The New York Militia plate is almost certainly worth more; however, having never seen this variety before, I have no basis for assigning a value to it.
Cool items. The first two are totally awesome. That third one is x-rated? WE NEED AN ADULTS-ONLY CATEGORY SO US OLD GEEZERS CAN SEE WHAT HAS BEEN BLURRED BEYOND VISION. OK, OK, I'll take a cold shower!!! Sheesh.