My first thought was gut hook knife, but if it's especially question mark shaped it could be a "rescue knife". They often have a backwards facing cutting edge f

My first thought was gut hook knife, but if it's especially question mark shaped it could be a "rescue knife". They often have a backwards facing cutting edge for seatbelts and the like. Example: https://eknives.com/microtech-combat-troodon-rescue-otf-tool-aluminum-frag-3-8-serrated-601-3ths/ https://eknives.com/microtech-combat-troodon-rescue-otf-tool...