RARE PREBAN - 1800's Antique Bone Folding orders Ruler

Product Name: RARE PREBAN - 1800's Antique Bone Folding orders Ruler
RARE PREBAN antique folding bone (OR SIMILAR) folding ruler from the mid to late 1800s. This beautiful little piece of functional art was exquisitely and finely handmade. Likely originally a part of an architects or draftsmans tool kit. This piece was a labor intensive, finely made orders expensive tool in its day and is an exquisite piece of the fine craftsmanship of a bygone era today. Extends to 12". Fully function and in fine antique condition. Item was tested with a hot needle to verify that it is NOT celluloid or plastic. Item has nice natural cross hatching grain (see picture). Pre-ban. See photos for measurements. A nice addition to any collection, any questions please ask. Material = bone, ox bone, bovine, horn, OR SIMILAR.