Throne
The throne is of the simple type
      
      . The throne is attached with a integrated base.
      
       
      
      
      
      Ring
The ring is of the simple, round cross-section
      type (i.e. simple plain ring made from a round rod or piece
      of metal).
      
      
      Shackle
Shackle of the eye-bolt type (i.e. any
      shackle that attactes to the ring via an eye-bolt type
      feature). . 
      Mater
The mater and limb are of two pieces, soldered
      and riveted construction. . Scales on the limb:
      
        
          
          | Range & Units | Numbered | Geometry | Location | 
        
          | Degree | 0 - 360 Degrees | Every 5 degrees | Circular, concentric | outer | 
      
      
      Womb
      
       
       
       
       
       
      
        Lines
        
          
            | Type | Labelled | Description | 
          
            | Meridian line |  |  | 
          
            | Horizon rectus |  |  |