It appears most blades were never used!
VINTAGE X-ACTO 3 KNIFE & 13 Blades WOOD CARVING SET IN Fitted WOOD BOX COMPLETE
Vintage X Acto Knife Set FOR SALE! - PicClick
WOOD KNIFE SET: The most effective blades on the market, this woodworking carving knife set is a perfect gift idea for craftsmen, woodworkers,
Woodworking Knife Set by Excel Blades - Precision Wood Carving Knife Set For Wood Carving, Scrapbooking, Model Kits and More - Craft Knife Bulk Set
VINTAGE X-ACTO KNIFE Set With Wooden Case 13 Piece Set $15.96 - PicClick
Vintage X-ACTO Knife Set w/ Dovetailed Wood Box - 3 Steel Handles + Extra Blades
Why You Should Buy a Marking Knife
Precision Hobby Knife Set with 3 Handles and 13 Blades - X-Acto Style
VINTAGE X-ACTO 3 KNIFE & 13 Blades WOOD CARVING SET IN Fitted WOOD BOX COMPLETE
My first proper little machining project made during my free time in my university's machine shop, a brass x-acto knife handle. Thoughts? I'm stoked with it. : r/Machinists
A curved blade hi-res stock photography and images - Alamy
Vintage X-Acto Craft Carving Tool Set in Original Wood Box - Not Complete
X-ACTO Compression Basic Knife Set, 3 Knives, 13 Blades, Soft Carry Case, 17 Count & X-ACTO 11 Classic Fine Point Replacement Blades, 40 Count : Arts, Crafts & Sewing
VINTAGE X-ACTO 3 KNIFE & 13 Blades WOOD CARVING SET IN Fitted WOOD BOX COMPLETE
X-Acto, EPIX5082, Basic Knife Chest, 1 Each