This listing is for a new old stock 4 Pack Bussmann Buss Fustat Type S 15 Amp Time Delay Fuses. They were manufactured in St. Louis, Missouri 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.