Rare vintage K & L dry fly box - The Improved Common Sense.  This aluminum dry fly box was made by F. W. Klinger & Langbein Company of Philadelphia, PA starting around 1938.  It has 12 individual compartments with twin transparent covers and the original pair of tweezers (very rusty).  The aluminum box has oxidation and a bit of rust around the fasteners due to age and use.  It measures 6-3/8" x 3-1/4" x 5/8".

Please refer to pictures for content and condition, feel free to ask any questions prior to purchasing.

THANKS FOR LOOKING!