Unlike the K & McD fobs, it has a double-pronged pin with a simpler hinge.
Like many Ketchem & McDougall products, a simple, unmarked nose-drive pencil is attached to the chain. This green marble one has a ring top similar to the Carter "Pearltex" pencils, with a small band of black between the marble and the gold-tone top with ring.
The top of the pencil screws off so an eraser can be enclosed inside, with room for extra leads, too. All the nose-drive mechanism is contained in the lower half.
The Beckhard Line was a shop dealing in stationary goods, for which they were the distributor rather than the manufacturer. Some of their goods were imported from Germany, Czechoslovakia, and other places. All their items appear to have been desk and letter related such as these letter boxes, pencil cup, and whimsical ceramic sponge holders used to moisten stamps or envelope flaps.
200 Fifth Avenue in New York's Flatiron District was the home of the International Toy Center, which had begun as a toy market when the first World War made the importation of toys from Germany impossible. The clock outside is a landmark from an earlier era.
The postal code "10" dates this fob to after 1943, when the US Postal Service began the 2-digit code. The pencil seems older, as it has the 1.1 mm lead from before 1938, but the supplier of this pencil in the WWII era may have been using up old stock. Celluloid was not easy to obtain during the war. Or this was a pencil already owned by the person who purchased the fob. It measures 4 inches.
It's nice to know another maker of pin-on fobs. I flipped over this one, did you?