Vintage Williams Duro-Lus metallic trolling line. In original box with manufacturer fact sheet. Special alloy is claimed to be lighter than other competitors' metallic line and to allow for less drag and more depth. 300 feet, .026 guage, 45# test. Great display piece or good for use - never off spool. Reduced to $15.00  with $5.00 USPS shipping, USA addresses only. No refunds or exchanges. Photo depicts actual item being listed.