Adjustable Metal T-Square Inclinometer Tool

This item appears to be a specialized measurement tool, stylistically consistent with an industrial-grade adjustable protractor or inclinometer used in metalworking or carpentry. The tool is constructed from an unfinished, silver-toned metal, likely aluminum or steel, consistent with mid-to-late 20th-century manual industrial equipment. It features a horizontal rail and a perpendicular sliding arm attached to a semi-circular protractor scale. The scale is marked in increments from 0 to 70 degrees on both sides of a central zero point. A small metal pointer sits at the center of the vertical arm to indicate the angle. The assembly is held together by various rivets and a central pivot point. Regarding condition, the metal surfaces show minor surface scuffs, small dings, and a matte patina indicative of light use and age. No specific brand markings or model numbers are visible in the provided image, so a precise maker cannot be established without physical inspection. The design is utilitarian, focusing on durability and precision measurement for layout work. The attribution of this item is based solely on its visible physical form as an adjustable angle-finding tool.

Based on the description and provided image, I have examined this adjustable metal T-square inclinometer tool. Stylistically, it appears to be a mid-to-late 20th-century manual instrument geared towards industrial layout work, metalworking, or carpentry. Based on what I can see, it features a practical 0 to 70-degree scale and standard metal construction, likely steel or aluminum. I cannot determine a specific manufacturer from the photograph, as no brand markings or model numbers are visible. This working assumption means I must appraise the item as a generic or unbranded utilitarian tool. The piece shows minor surface scuffs and a matte patina consistent with light use and age. The market for vintage measuring tools generally favors items bearing stamps from prominent makers. Since this tool appears unbranded, its appeal is primarily to practical users or hobbyists rather than specialized tool collectors. My value estimate is based on the assumption that it remains highly functional and structurally sound. To potentially elevate its value, physical inspection would be required to search for faint or hidden maker marks under the pivot point or along the edges. If an attribution to a highly regarded manufacturer could be supported through hands-on evaluation, the value might shift toward the $50 to $100 range. However, as an unbranded piece of utilitarian equipment, it carries a modest functional value within the current secondary market for hand tools.