This mortice marking gauge has an adjustable sliding arm. The gauge is used for scribing two lines on a flat surface such as timber for measuring and cutting. It is a hand-powered tool that would have been used by a tradesperson such as a cabinet maker, woodworker or carpenter. The hand tool shows signs of much use. The ‘W. Maples & Sons, Hibernia’s catalogue of 1867 had a very similar tool, called a Mortice Gauge, column 2, page 15. W. MARPLES & SONS- William Marples Snr. had a business on the Sheffield Moor in 1773/74. In 1821 his son William Jnr. At 12 years old began in his father’s joinery business. 1833 the firm was known as a tool manufacturer. In 1838 Marples called his business Hibernian Works and moved to 67-69 Spring Lane, Sheffield. When he moved to Westfield Terrace in 1856, he called his business Hibernia Works (no ‘n’ on the end). The business remained at this address for 116 years. In about 1859 the firm began using the Lyre (Irish harp) mark. In 1860 or so the two brothers, Edwin and William Marples, became partners and the firm became William Marples and Sons. The firm introduced the single shamrock symbol in 1860-61. The boys’ brother Albert joins the firm in 1863. In 1875 the company registered both the name ‘Hibernia’ and the trade mark symbol of a Triple Shamrock and the use of these trademarks continued for many decades, into the 1940 and the firm, with many changes, was still in business in the early 21st century. About Shamrock and Hibernia, both are related to Ireland and W. Marples named his products the Shamrock brand.The marking gauge is an example of a hand powered woodworking tool used over the past few centuries. Its maker was well known for his good quality tools and his business grew because of his reputation.Mortice marking gauge: wooden staff with block and green, adjustable sliding arm within the staff. The end of the staff has a facility for holding the scribe marker. The block has a hole into which a peg or wedge would be inserted to hold the sliding arm in place. Inscription with maker's name and almost indecipherable mark is stamped onto one side of the block. Made by W Marples & Sons, Sheffield.Stamped into block “W. MARPLES & SONS / HIBERNIA WORKS” above Logo of ‘Trefoil’ image [three, three-leafed clovers on the same stem]flagstaff hill, warrnambool, maritime museum, maritime village, shipwreck coast, hand tool, woodwork, marking gauge, measuring tool, mortice gauge, mortice marking gauge, william marples, w marples & sons, hibernia, shamrock, trifoil, tripple shamrock, carpenter's tool, cabinet maker, woodworking tool, drawing, planning, tool, wooden scribe, vintage, carpenter, marking tool, antique, marking out, joiner