France Quest Help

I’m doing the Crossbow Enthusiast quest, but I can’t find the perfect mohagany plank, I’ve found all the other items, but can’t find it. Can anyone tell me where it is? Also the Steam forums were no help, all I got for a response from there is “are you new to the internet”, response. I’ve searched guides but can’t find its location, sadly.

https://steamcommunity.com/app/304930/discussions/13/1741101364281666178/

I can confirm that the Plank is at Camp Grenoble on a table out in the open.

Steam link isn’t working for me, however, this helped me find the plank. Thanks!