diff --git a/src/main/java/com/marsspiders/ukwa/controllers/CategoryController.java b/src/main/java/com/marsspiders/ukwa/controllers/CategoryController.java
index b4b59af..8632199 100644
--- a/src/main/java/com/marsspiders/ukwa/controllers/CategoryController.java
+++ b/src/main/java/com/marsspiders/ukwa/controllers/CategoryController.java
@@ -77,6 +77,8 @@ public ModelAndView rootCategoriesPagev2(HttpServletRequest request) {
         }
 
         mapCollectionDTO = new HashMap<>();
+        Random random = new Random();
+
         //all collections
         for (Map.Entry<String, List<PivotField>> pivotEntry : pivotEntryList) {
             Iterator iterator;  //Iterator<PivotField>
@@ -84,7 +86,7 @@ public ModelAndView rootCategoriesPagev2(HttpServletRequest request) {
 
             for (int y=0; y < pivotEntry.getValue().size();y++) {
                 if (pivotEntry.getValue().get(y).getPivot() != null) {
-                    log.info("List [" + y + "] Pivot size = " + pivotEntry.getValue().get(y).getPivot().size());
+                    log.debug("List [" + y + "] Pivot size = " + pivotEntry.getValue().get(y).getPivot().size());
 
                     indx_deep = 0;
                     charSet = new HashSet<>();
@@ -112,10 +114,10 @@ public ModelAndView rootCategoriesPagev2(HttpServletRequest request) {
 //                                log.info("matcher : index = " + k++ +", group = " + m.group(2));
 //                                log.info("matcher : index = " + k++ +", group = " + m.group(3));
 
-
                             mapCollectionDTO.put(
                                     //add only collectionArea ID, title cannot be extracted from SOLR query
-                                    pivotEntry.getValue().get(y).getPivot().get(indx_deep).getValue().toString(),
+                                    //13+Id: all collection list must contain unique collections, so starting part remains the same i.e. 13
+                                    13 + pivotEntry.getValue().get(y).getPivot().get(indx_deep).getValue().toString(),
                                     new CollectionDTO(
 
                                             pivotEntry.getValue().get(y).getPivot().get(indx_deep).getValue().toString(),
@@ -131,7 +133,6 @@ public ModelAndView rootCategoriesPagev2(HttpServletRequest request) {
                             indx_deep++;
                         } else
                             iterator.next();
-                        log.info("mapCollectionDTO size = "+mapCollectionDTO.size());
                     }
                     //add all collections that belong to category
                     // && TODO: sub-collections? - Need to concentrate on lists from ACT in JSON
@@ -139,9 +140,7 @@ public ModelAndView rootCategoriesPagev2(HttpServletRequest request) {
             }
 
             //List<HashMap<String, HashMap<String, CollectionDTO>>>
-
             //Final add map of
-
         }
 
         map3 = new HashMap<>();
@@ -152,7 +151,6 @@ public ModelAndView rootCategoriesPagev2(HttpServletRequest request) {
                                 Map.Entry::getKey, Map.Entry::getValue, (a, b) -> a, LinkedHashMap::new)));
 
         listOfMapsOfItemsOfCategories3.add(map3);
-        
 
         //collection areas
         for (Map.Entry<String, List<PivotField>> pivotEntry : pivotEntryList) {
@@ -192,7 +190,8 @@ public ModelAndView rootCategoriesPagev2(HttpServletRequest request) {
 
                             mapCollectionDTO.put(
                                     //add only collectionArea ID, title cannot be extracted from SOLR query
-                                    pivotEntry.getValue().get(y).getPivot().get(indx_deep).getValue().toString(),
+                                    //random + Id: collection list must contai unique collections, so starting part remains unique i.e. random
+                                    (random.nextInt(90)+10) + pivotEntry.getValue().get(y).getPivot().get(indx_deep).getValue().toString(),
                                     new CollectionDTO(
 
                                             pivotEntry.getValue().get(y).getPivot().get(indx_deep).getValue().toString(),
@@ -224,8 +223,6 @@ public ModelAndView rootCategoriesPagev2(HttpServletRequest request) {
                                 .sorted(Comparator.comparing(collDTO -> collDTO.getValue().getName()))
                                 .collect(Collectors.toMap(
                                         Map.Entry::getKey, Map.Entry::getValue, (a, b) -> a, LinkedHashMap::new)));
-
-                log.info("count [" + pivotEntry.getValue().get(y).getValue().toString() + "]" + mapCollectionDTO.entrySet().stream().count());
                 //Final add map of
                 listOfMapsOfItemsOfCategories3.add(map3);
                 listOfAlphabetical.add(charSet);
diff --git a/src/main/webapp/WEB-INF/jsp/speccoll.jsp b/src/main/webapp/WEB-INF/jsp/speccoll.jsp
index ec48256..310aaca 100644
--- a/src/main/webapp/WEB-INF/jsp/speccoll.jsp
+++ b/src/main/webapp/WEB-INF/jsp/speccoll.jsp
@@ -119,21 +119,21 @@
                                 <li class="list-group-item col-lg-6 col-md-6 col-sm-12">
 
                                     <div class="media">
-                                        <a href="collection/<c:out value="${collection.key}"/>" class="collection-link">
-                                            <img style="width:160px;height:auto;" alt="<c:out value="${collection.value.name}"/>" src="img/collections/collection_<c:out value="${collection.key}"/>.png"/>
+                                        <a href="collection/<c:out value="${fn:substring(collection.key, 2, 7)}"/>" class="collection-link">
+                                            <img style="width:160px;height:auto;" alt="<c:out value="${collection.value.name}"/>" src="img/collections/collection_<c:out value="${fn:substring(collection.key, 2, 7)}"/>.png"/>
                                         </a>
                                         <div class="ml-3 media-body">
                                             <div class="row">
                                                 <div class="col-12 category-collection-search-result-ul">
-                                                    <a href="collection/<c:out value="${collection.key}"/>" class="collection-link">
+                                                    <a href="collection/<c:out value="${fn:substring(collection.key, 2, 7)}"/>" class="collection-link">
                                                         <h5><c:out value="${collection.value.name}"/></h5>
                                                     </a>
                                                 </div>
                                             </div>
 
                                             <div id="colmodule" class="collection-descr" >
-                                                <p id="collapseCollection-<c:out value="${collection.key}"/>" class="collapse text-justify text-muted small col-descr" data-content="tmp_data" aria-expanded="false"><c:out value="${collection.value.description}"/></p>
-                                                <a role="button" data-content="<spring:message code="categories.filter.results.showmore" />" class="collapsed showmoreless" data-toggle="collapse" href="#collapseCollection-<c:out value="${collection.key}"/>" aria-expanded="false" aria-controls="collapseCollection-<c:out value="${collection.key}"/>"></a>
+                                                <p id="collapseCollection-<c:out value="${fn:substring(collection.key, 2, 7)}"/>" class="collapse text-justify text-muted small col-descr" data-content="tmp_data" aria-expanded="false"><c:out value="${collection.value.description}"/></p>
+                                                <a role="button" data-content="<spring:message code="categories.filter.results.showmore" />" class="collapsed showmoreless" data-toggle="collapse" href="#collapseCollection-<c:out value="${fn:substring(collection.key, 2, 7)}"/>" aria-expanded="false" aria-controls="collapseCollection-<c:out value="${fn:substring(collection.key, 2, 7)}"/>"></a>
                                             </div>
 
                                         </div>