This listing is for a new old stock lot of ten (10) Econ Type ECN 50 250 Volt Dual Element Time Delay Cartridge Fuses.  These are equivalent to type FRN 50.  They were manufactured in Des Plaines, Illinois USA.

Your satisfaction is guaranteed.  All items are shipped via the US Post Office (USPS).  I make every effort to ship your item within 24 hours following receipt of payment, except for Sundays or Holidays when the post office is closed.  Payments are accepted by Paypal.