AJ
US Veteran
I looked at the add for this knife and saw no reference to this style knife being used by Marines in WW1 or any other war for that matter. The add also says it is licensed by the USMC. I think you're making a mountain out of a mole hill. I suspect the OP bought the knife because he thought it looked interesting. Not because he thought it represented anything used by Marines in WW1. IT is an interesting looking design and if I thought the steel would hold up to use might consider one for camping.
Maybe I am making a mountain out of a mole hill. Anyone can buy anything they want, no denying that. It still just amazes me that you can put the letters USMC on something that has nothing to do with the Corps or it's history and get folks to buy it. Hopefully some of the sales is being donated to a worthy charity.