Just a couple of guys who both decided they needed it. I've seen it happen at live auctions more times than I could count. Thanks for the advice!
I spent an hour or so last night doing all the research I could on the trench knife. At this point in time, based solely on pictures, I'm leaning towards it being authentic. Once I have it in my mitts I'm about 90% sure I'll be able to tell with 90% confidence if it's real or not.
Here's hoping no one else there knows what it is.
I'll keep everyone updated!