diff --git a/AircraftHelicopters/MH53eSeaDragonUnitedStates/MH53EMainRotorBlade.x3d b/AircraftHelicopters/MH53eSeaDragonUnitedStates/MH53EMainRotorBlade.x3d
index f1e0fce4970f8a98479668dfa953e98ef32cbb1a..b5e44aaaaa7e43ffac493c996601c0ea2c97472f 100644
--- a/AircraftHelicopters/MH53eSeaDragonUnitedStates/MH53EMainRotorBlade.x3d
+++ b/AircraftHelicopters/MH53eSeaDragonUnitedStates/MH53EMainRotorBlade.x3d
@@ -14,6 +14,7 @@
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     <meta content='http://www.ndu.edu/nwc/nwcCLIPART/US_NAVY/Equipment/Helicopters/MH-53E(Sea-Dragon)/MH53ESeaDragon01.jpg' name='Image'/>
+    <meta content='https://savage.nps.edu/Savage/AircraftHelicopters/MH53ESeaDragonUnitedStates/MH53EMainRotorBlade.x3d' name='identifier'/>
     <meta content='X3D-Edit, https://www.web3d.org/x3d/translation/README.X3D-Edit.html' name='generator'/>
     <meta content='../../license.html' name='license'/>
   </head>