Yes, it's an 1855A Hamburg Schilling. It has a lower mintage than the no mintmark variety, but has approximately the same value. These are some of the more affordable/common German States coins from the time period.
In terms of grading, I would grade it as a vorzgulich/stempelglanz.
Here is a lot of 2 that just sold listed at vz/st for 14-15 dollars each. Yours might have a little better surface preservation than those, but the speckled surfaces on the reverse are not that desirable. I would need to see more luster on the raised surfaces and cleaner fields for it to be fast stempelglanz or bankfrisch.
http://www1.wago-auktionen.de/losde...nr=819&rid=6The German grading scales translate roughly as vorzgulich = ~AU53-55, vorzgulich/stempelglanz = ~AU58, stempelglanz = ~MS65, fast stempelglanz = ~MS63. German grading tends to emphasize eye appeal and coloring more than the sheldon scale, whereas the sheldon scale is almost completely surface preservation. So it's not always a 1 to 1 translation. I mention this because German coin values on the market don't always scale exactly with the sheldon scale when you look at prices, and you could argue that their grading is closer to what we call market grading. The term market grading is often a derogatory term in the US, but it isn't for me.
Edited by JimmyJames
04/15/2015 3:03 pm