Look for a 1st Variation Trapdoor Springfield Hammer

[Niederlander]

Gentlemen, I'm looking for a first variation 1873 Trapdoor hammer in good condition.  It's the one with cross hatching instead of the checkering. 

[Drydock]

https://www.ssfirearms.com/proddetail.asp?prod=73S316A

Needs to be polished and blued

[Niederlander]

And hardened.  They tend to be soft.