diff --git a/forge-gui/src/main/java/forge/itemmanager/ColumnDef.java b/forge-gui/src/main/java/forge/itemmanager/ColumnDef.java
index 3484a8800b0..2c3864557e3 100644
--- a/forge-gui/src/main/java/forge/itemmanager/ColumnDef.java
+++ b/forge-gui/src/main/java/forge/itemmanager/ColumnDef.java
@@ -662,12 +662,19 @@ public enum ColumnDef {
         String collectorNumber;
         if (i instanceof PaperCard) {
             collectorNumber = ((PaperCard) i).getCollectorNumber();
+            // First off, make all NO_COLLECTOR_NUMBER the last in sortings
+            if (collectorNumber.equals(IPaperCard.NO_COLLECTOR_NUMBER))
+                collectorNumber = "50000";  // very big number of 5 digits to have them in last positions
+
             // Now, for proper sorting, let's zero-pad the collector number (if integer)
             try {
                 int collNr = Integer.parseInt(collectorNumber);
                 collectorNumber = String.format("%05d", collNr);
             } catch (NumberFormatException ex) {
-            }  // NOOP, leave it as it is - NaN (may contains letters)
+                String nonNumeric = collectorNumber.replaceAll("[0-9]", "");
+                String onlyNumeric = collectorNumber.replaceAll("[^0-9]", "");
+                collectorNumber = String.format("%05d", Integer.parseInt(onlyNumeric)) + nonNumeric;
+            }
         } else {
             collectorNumber = IPaperCard.NO_COLLECTOR_NUMBER;
         }