Speedball Number 20 General Purpose Set

Speedball's Number 20 Set is an 8-piece assortment for delicate fine line, cross-hatching, and lithography.
It includes the following pen nibs and holders:

  2 Speedball pen holders — #102 and #104.  
  6 Speedball pen nibs — #100, #102, #103, #104, #107, and #...