B64-704. INCLINOMETER. Direct Reading Instrument Co. 11-12" precision vial in a cast iron and brass body, has a loop on one end and a small round level on the other. Marked "Patentees and Maker, The Direct Reading Instrument Co., Halifax." In its original box with a table of distance measurements pasted into the lid. Only one we've ever seen. From the collection of Cecil Holmes. Condition: Fine, Estimate: 200-400