Info needed on this knife

[RobbP]

Hi all, my first post, thanks for having me.

I picked this up at a flea market because it was cool. Other than Philippines being stamped in the pocket clip, I have not observed any other markings. Anyone have information on this? Age, value, were these common in the U.S.?

Thanks for any and all help!
Robb

[sammy the blade]

That's different. No idea about it other than it being a butterfly knife.

[jerryk25]

They have been around since the Westbury Sales K12 days. . . 1960 ?
I never bought one.
I've seen many advertisements for it.
I don't know how "Common" they were. . .
They were at their peak back in 1964, or so, during "The Man from U.N.C.L.E." Spy TV show.
In Pittsburgh, By 1968 everyone wanted "Buck folding hunters" . . .and Butterflys were less seen.
There was a resurgence during the "Kung Fu" era of the 70's . . .

Just as there are at least 6 different K12-ALs.
I suspect this "InkPen Balisong" has more than one manufacturer and tang marking.
I think they came in gold or silver tone. . .
So I could not begin to speculate if this is vintage or recent.

I always called them Balisong Knives . . .and not Butterfly Knives. . . .
I don't recall why. . . .

[TLM845]

This is called a BaliPen. Balisong+Pen. Made in the province of Batangas in the Philippines.

[TMD]

Cool knife!
According to Frederick J Stephens book, Fighting knives, published in 1985.
One example very similar to yours is in the book, it says it was made during World War 2 and after, It was a popular souvenir by american pilots stationed in the Philippines.

[gravknife]

Love that knife
Very James Bond /S.O.E looking and I have never seen one .
Thanks for sharing it .