About the object

This triangular object in the shape of an ‘A’ might have been used as a set square, a mathematical instrument for checking and drawing right-angles. It perhaps belonged to a carpenter, architect or draughtsman. Fixed set squares like this one have been used since ancient times. By the sixteenth century, they also were made from two rules hinged together at one end so they could be folded away neatly. This one is designed with a loop so it can be worn. It may have been tied with a ribbon around the child’s neck or wrist when they were left at the Hospital. We haven’t yet been able to match this token with a child.