Need help with ID of old revolver

[DDGator]

Lots of experienced guys here...

Can anyone help me identify this old revolver?

Small caliber -- .32-ish.  Loads through a side gate like a single-action, but is actually double-action.  No exterior markings that woud indicate a caliber or manufacturer.  

http://www.flickr.com/photos/daiker/5974491520/

Let me know!

[kjtrains]

Looks like a Belgian Pinfire to me.

http://www.simpsonltd.com/product_info.php?cPath=156_186&products_id=95&osCsid=69b9dfe4d848914b11cc8b48a4efa7ed

Here's another, but missing the ejector rod.

http://www.simpsonltd.com/product_info.php?cPath=156_186&products_id=2016&osCsid=69b9dfe4d848914b11cc8b48a4efa7ed

[DDGator]

Yep, a friend clued me in to that.  It is DEFINITELY a pinfire of some sort.

The U and crown proofmarks on the cylinder and under the barrel indicate the gun was sold in Germany, which means it was likely of Belgian manufacture.

This is probably a 7mm.  Some of these guns date back to the civil war era.  A few were made as late as 1911.  My best gusss from what I see on the internet has this one made in the 1870s to 1880s.

Thanks!