Beautiful Antique Boxwood and Brass Folding 12 Inch Ruler handmade fingerpuppet I am not entirely sure

I am not entirely sure if it is one of a kind  or if there were a number of these produced

The weaving on it seems pretty complicated to this novice

which takes a strong pull to open

it features essays by Arp

Beautiful Antique Boxwood and Brass Folding 12 Inch Ruler handmade fingerpuppet I am not entirely sureI just found this and two other old folding rulers and am completely in love with them; I keep carrying them around as they are just a complete delight to hold in the hand, and how much better to measure little things with one of these than with a clunky measuring tape! I am not entirely certain the maker of this one I have found a "No. 57" (which is how this one is marked)) attributed to E. A. Stearns Co., but also one attributed to Stanley, and I