Index: applications/editors/josm/plugins/imagery_offset_db/src/iodb/CalibrationLayer.java
===================================================================
--- applications/editors/josm/plugins/imagery_offset_db/src/iodb/CalibrationLayer.java	(revision 29427)
+++ applications/editors/josm/plugins/imagery_offset_db/src/iodb/CalibrationLayer.java	(revision 29428)
@@ -98,6 +98,10 @@
     @Override
     public String getToolTipText() {
-        return "A " + (obj.isDeprecated() ? "deprecated " : "") + "calibration "
-                + OffsetInfoAction.getGeometryType(obj) + " by " + obj.getAuthor();
+        if(obj.isDeprecated())
+            return tr("A deprecated calibration {0} by {1}",
+                OffsetInfoAction.getGeometryType(obj), obj.getAuthor());
+        else
+            return tr("A calibration {0} by {1}",
+                OffsetInfoAction.getGeometryType(obj), obj.getAuthor());
     }
 
Index: applications/editors/josm/plugins/imagery_offset_db/src/iodb/OffsetInfoAction.java
===================================================================
--- applications/editors/josm/plugins/imagery_offset_db/src/iodb/OffsetInfoAction.java	(revision 29427)
+++ applications/editors/josm/plugins/imagery_offset_db/src/iodb/OffsetInfoAction.java	(revision 29428)
@@ -108,5 +108,5 @@
     public static String getGeometryType( CalibrationObject obj ) {
         if( obj.getGeometry() == null )
-            return "nothing";
+            return tr("nothing");
         int n = obj.getGeometry().length;
         if( n == 1 )
@@ -117,5 +117,5 @@
             return tr("polygon ({0} nodes)", n - 1);
         else
-            return "geometry";
+            return tr("geometry");
     }
 }