The Collaborative International Dictionary of English v.0.48:

Craftsmanship \Crafts"man*ship\, n.
   The work of a craftsman.
   [1913 Webster]

WordNet (r) 3.0 (2006):

craftsmanship
    n 1: skill in an occupation or trade [syn: craft,
         craftsmanship, workmanship]

Moby Thesaurus II by Grady Ward, 1.0:

101 Moby Thesaurus words for "craftsmanship":
   ability, address, adeptness, adroitness, airmanship, architecture,
   artfulness, artisanship, artistry, assembly, bravura, brilliance,
   building, capability, capacity, casting, cleverness, command,
   competence, composition, construction, control, conversion,
   coordination, craft, crafting, creation, cultivation, cunning,
   deftness, devising, dexterity, dexterousness, dextrousness,
   diplomacy, efficiency, elaboration, erection, expertise,
   extraction, fabrication, facility, fashioning, finesse, formation,
   forming, formulation, framing, grace, grip, growing, handicraft,
   handiness, handiwork, harvesting, horsemanship, ingeniousness,
   ingenuity, know-how, machining, making, manufacture, manufacturing,
   marksmanship, mastership, mastery, milling, mining, molding,
   practical ability, prefabrication, preparation, processing,
   producing, proficiency, prowess, quickness, raising, readiness,
   refining, resource, resourcefulness, savoir-faire, savvy,
   seamanship, shaping, skill, skillfulness, smelting, style, tact,
   tactfulness, technical brilliance, technical mastery,
   technical skill, technique, timing, virtuosity, wit, wizardry,
   workmanship