The Ink Consortium uses the medallion pictured above. There are three guilds in the consortium. The apprenticeship medallions are made of copper, while the journeymen medallions of this consortium are bronze and set with a lapis lazuli stone.
The Guilded Society of the Learned encompasses the Solicitor (lawyer), Cartographer, Interpreter and Surveyor.
The Metronist Society encompasses the Engineer, Artillerist and Contraptionist.
The Calcularium League encompasses the Engineer, Artillerist and Architect.