 Negafile then...Recognizing a need for additional protection and a recording system, glassine envelopes, acetate sleeves and Kraft envelopes were incorporated into the files along with numbered index tabs and dividers. As the popularity of this system grew, the products appealed to more diverse customer uses, including: Electron Microscopy, Stereoscopic and Lantern Slides, Laboratory glass slides, View Masters, Stereo Cassette, Philatelic, Coin Collectors and the Computer/Music CD.
Located in Hatfield, PA, Electron Microscopy Sciences specializes in the manufacturing, preparation and distribution of the highest quality laboratory chemicals and microscopy supplies and equipment for electron microscopy, light microscopy, histology and related scientific fields.  Although the wooden drawers and containers are no longer produced, some pieces remain in our inventory. Many of our quality products can be found in online marketplaces. Electron Microscopy Sciences continues to distribute the Negafile Systems products found on this site to the general public, along with packaging and preservation products to service the needs of the industrial packaging user. Please contact us for more information about Negafile Products! ... Negafile today!
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Negafile Systems™ was founded in Easton PA in 1939
by an Engineer and amateur photographer enthusiast looking to design
a functional preservation and filing system for photographic negatives
and prints. Thus, the Negafile System™ was created - beautiful, hand-made wooden containers, the first of which were designed to store 2x2 slides and 120mm film. The strength
and durability of this product is derived from the corner-lock
construction, this and the attractive acid free mahogany hardwood
gives the files their furniture quality look and archival storage
capabilities. 
Appreciating the quality of the product line, Electron Microscopy Sciences added the Negafile Product line to it's catalog. Upon retirement, Negafile's owner sold the remaining inventory and the company to Electron Microscopy Sciences.