Broad-edge nibs from England. Comes in 10 sizes.
 
These broad-edge nibs are good for many scripts including Carolingian, Italic, Uncials, Gothic, Foundational Hand, and Roman Capitals. Used by professional calligraphers with and without the reservoirs (for holding more ink on the nib, purchase here separtely).
 
Size reference:
 
Size 0 = 3.3mm
Size 1 = 3mm
Size 1-1/2 = 2.5mm
Size 2 = 2.3mm
Size 2-1/2 = 1.8mm
Size 3 = 1.4mm
Size 3-1/2 = 1mm
Size 4 = 0.9mm
Size 5 = 0.75mm
Size 6 = 0.6mm
 
Fit the nib into a straight penholder.
*For Right-handed writers only.