Here is the Primus 1684 Protecting Plate. This accessory was used on the Primus #2 and #6 stove to deflect(?)/reflect(?) heat from the tank. The plate is shown in the last picture on a Bahco Primus #2.
I wonder what would the other end of the chain have been attached to - the label seems to indicate something above the stove...
https://classiccampstoves.com/threads/9950 Hi, I had always assumed that the ring on the end of the chain was slipped over one of the stove legs, but I was wrong! It appears that the chain was attached to a rail on the front of the cast iron pot support frame, under which the stove sat. Picture to follow. Best Regards, Kerophile.
Hi, here is an image from some Primus advertising material, dating from the 1910-20s perhaps: Best Regards, Kerophile
Over the stove leg if it's under an oven or under a tripod or other large apparatus but on the cast-iron range there is a small hole in the front access flap that the ring goes through.