Vintage Blackjack Effingham IL And Japan. Attention Blackjack Collectors! Hopefully You Know What It Is. After Lots Of Searching And Trying To Get Correct Info, Its Just Best To Admit I Don't Know For Sure. I Think It Is A Version Of The Mamba. One Site Called It Mini Mamba. I Do Know It Is In Excellent Unused Condition. It Has A 5" High Satin Finish Blade That Is Stamped Blackjack Knives Japan And The Other Side Says Hand Finished In Effingham, IL USA. All Lettering Is Strong And Not ...Buffed Out Like Blackjacks Get. Knife Does Not Appear To Have Been Handled Very Much. Pre-owned. Came From Private Collection. Never Used, Carried Or Sharpened. Black Nylon Sheath Is Also Excellent Condition. No Box. Factory Edge Only And Typical Blackjack, Its Sharp! Sorry For Shadows In Photos But I Think They Will Show How Nice This Knife Is. Sorry For Lack Of Info But I Don't Like Sending Out Wrong Info Or Guessing What Something Is. (Smoke / Vape Free Environment). Thank You For Looking And Please Take A Look At Our Other Items For Sale. USPS First Class Insured Shipping. (1020SHH-JH)