Occupying the guest quarters (11C) and monks' dormitory (16C) above the chapter house of the abbey of St Julien, this museum traces the history, customs and practices of the town guilds' journeymen. It explains trades (some extinct, some not), tools and the multiple masterpieces created by journeymen (or compagnons - "those with whom one breaks bread") to qualify as guild members. The quality of workmanship and extensive documentation is remarkable.