I doubt this is a real benchmade but thought I would check before I chuckled it... says Bali-song inside the butterfly and Benchmade USA underneath. Other side of the blade has ATS-34 :
Benchmade 31 Bali-Song Titanium Pre-Production Butterfly Knife with Satin Serrated Blade Knife Information | KnifeGeek
Vintage Benchmade 41SS Limited Edition Bali-Song
Reviews and Ratings for Benchmade 67 Balisong Butterfly 4.25" Recurve Tanto Blade, Stainless Steel Handles, T-Latch - KnifeCenter
Couteau papillon Benchmade Billet Ti Bali-Song lame Acier CPM S30V 112 mm manche titane gris
Benchmade Bali-song Model 49-03 - Pacific Edge Cutlery