This is a superb old very large original quality wood and brass spirit level.The level measures 24 inches across,1.3 inches in depth and 3.2 inches in height.The level is well marked as shown ADJUSTING SCREW JOHN RABONE & SONS MAKERS BIRMINGHAM WARRANTED CORRECT.The piece probably dates to the early 1900s and is in good original used condition,with a really good colour and patina.Thanks for viewing and please take a look in my shop for many more interesting old items.