Sponsors and Curators The Museum of Yo-Yo History is a labor of love, and we would not be able to stay up-to-date with exhibits without the support of our sponsors and curators. Big thanks go to One Drop Design and Duncan for supplying us with their latest models, YoYoExpert for their help and support, and to Cody Orr, TotalArtist and YoYoBrothers™ for allowing us to use their collections! If you're a manufacturer, or just a big collector and you want to help support the Museum drop me at line at chimera@yoyomuseum.com Duncan String Pak Butterfly Exhibit #4343 Type Production Shape Concave )-( Axle Fixed Finish Unfinished Color Green/Blue Packaging Bubble Carded Construction Multi-piece plastic Response Starburst Gap Fixed Condition Mint Date 1979 Owner Rick Brough Compare The String Pak Butterfly was an unusual Duncan butterfly model: you could place two or more spare yo-yo strings (or "secret messages" as Duncan describes) inside the cavity of each halve. Both halves have snap-on side caps that you could easily remove to access the spare strings. An uncommon and short-lived Duncan Butterfly model that was first released in 1979 during Duncan's 50th anniversary celebration. Of interest... See the Duncan 1979 product catalog that introduced the String Pak Butterfly yo-yo for the first time! Other Views Profile Card front, large Card back, large 2005-2023 Software © David W. Hall & Grahame BaptieWright Content by David W. Hall & Rick Brough