Found on Archive.org: Moriarty's Neverslip Pick and Socket Paddle Spike

Here's a curious (and potentially dangerous) bit of paddle related gear from an advertisement in the 1907 edition of In the Maine Woods. 

Moriarty's Neverslip Pick and Socket was a sort of paddle tip protector with a sharpened metal point. A claim on the right side of the ad states, "Makes Paddle a reliable Setting Pole"

Pick & Tip Protector

Somehow I'm picturing a new comic book hero. A crime-fighting, canoe paddling eco-warrior ensuring people don't trash backcountry sites. I think this would be his/her weapon of choice.