I need to take apart the TD latch from an 1899. Before I proceed and possible screw something up I wanted to get some opinions. I've attached a picture of the rear, or top depending on how you want to look at it, of the latch. It looks like there is a roll pin holding the sliding part in. I thought it was a hex screw but I don't that's the case after looking at it closer. Anyone around here done this before?

Thanks.

Attached Images
99TDLatch.jpg (48.34 KB, 32 downloads)