Other forms: workmanships
The noun workmanship can describe the hard work and skill that go into making something or working at a task — and it can also describe a quality of a handmade object that is skillfully crafted.
You show workmanship when you labor carefully over a project, and the beautiful hooked rug you create also shows workmanship. If your shop teacher admires the workmanship of your wooden footstool, she is complimenting the quality of your work. The fourteenth century meaning of workmanship was simply "laboring," and later it came to include the idea of "skill in work."