Check the listing for details. WORF -ISS NASA WINDOW OBSERVATIONAL RESEARCH FACILITY- ORIGINAL AB Emblem PATCH. Condition: New. Listed at 10.95 USD. WORF - ISS - NASA WINDOW OBSERVATIONAL RESEARCH FACILITY - ORIGINAL AB Emblem 4.5" SPACE PATCH WORF was delivered on April 5, 2010 by STS-131 .The Window Observational Research Facility (WORF) is an experiment rack facility was manufactured in Huntsville, AL, by Boeing., which remotely operated payloads and crew members can perform Earth and space science research, including handheld photography, at the U.S. Laboratory Science Window on the International Space Station. WORF is based on an International Standard Payload Rack (ISPR) and utilizes avionics and hardware adapted from the EXPRESS Rack program. The rack provides a payload volume equivalent to 0.8 m3 (28 cu ft) and will be able to support up to three payloads simultaneously, depending on available resources and space available at the window. The WORF will also provide access and equipment for crew Earth observations, such as crew restraints, camera/camcorder brackets, and condensation prevention. WORF payloads include those focusing on geology, agriculture, ranching, environmental and coastal changes, and education.Approximately 4 1/2” Diameter THIS - ORIGINAL - 4 1/2" - NASA ISS - SPACE PATCH IS IN- MINT - CONDITION - AS Pictured usafspace.com apollopatches.com apollospacepatches.com usafspacepatches.com spacexpatches.com spacexmissionpatches.com launchpatches.com missionpatches.com marspatches.com nasacrewpatches.com nasaspacepatches.com ussfpatches.com ussfcoins.com spaceforcepatches.com nropatches.com nrocoins.com rocketlabpatches.com © 2002 - 2022 usafspace.com. All Rights Reserved. THANKS FOR LOOKING, I WILL BE HAPPY TO COMBINE ITEMS TO SAVE ON SHIPPING**** PLEASE CHECK OUT OUR - EBAY STORE - AND OTHER EBAY AUCTIONSA LOTMORE GREAT PATCHES, CHALLENGE COINS, FLOWN MEDALLIONS, SPACE STICKERS, AND INCREDIBLE SIGNED NASA PHOTOSNASA LITHOS AND SPACE COLLECTIBLES ARE LISTED****PLEASE KEEP WATCHING, WE ARE ADDING NEW ITEMS DAILY***