diff --git a/expath-pkg.xml b/expath-pkg.xml
index 5fad03b..cd41994 100644
--- a/expath-pkg.xml
+++ b/expath-pkg.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<package xmlns="http://expath.org/ns/pkg" name="http://syriaca.org/britishLibrary" abbrev="britishLibrary" version="2.53" spec="1.0">
+<package xmlns="http://expath.org/ns/pkg" name="http://syriaca.org/britishLibrary" abbrev="britishLibrary" version="2.54" spec="1.0">
     <title>Syriac Manuscripts in the British Library</title>
     <dependency package="http://exist-db.org/apps/shared"/>
 </package>
diff --git a/modules/app.xql b/modules/app.xql
index 8768017..239c7ae 100644
--- a/modules/app.xql
+++ b/modules/app.xql
@@ -182,7 +182,7 @@ return
                              <span class="glyphicon glyphicon-print" aria-hidden="true"></span>
                         </a>, '&#160;')
                     else if($f = 'email') then                        
-                        (<a href="mailto:david.a.michelson@vanderbilt.edu?subject=Shelf mark:{$shelfMark} Record URI: {$url}" type="button" class="btn btn-default btn-sm" data-toggle="tooltip" title="Click to report a correction via e-mail." >
+                        (<a href="mailto:bl.syriac.uk@gmail.com?subject=Shelf mark:{$shelfMark} Record URI: {$url}" type="button" class="btn btn-default btn-sm" data-toggle="tooltip" title="Click to report a correction via e-mail." >
                              <span class="glyphicon glyphicon-envelope" aria-hidden="true"></span> Corrections
                         </a>, '&#160;')                          
                     else if($f = 'ghIssue') then
diff --git a/modules/lib/data.xqm b/modules/lib/data.xqm
index 00d22fe..4e856cd 100644
--- a/modules/lib/data.xqm
+++ b/modules/lib/data.xqm
@@ -291,6 +291,7 @@ declare function data:create-query($collection as xs:string?) as xs:string?{
             data:element-search('idno',request:get-parameter('idno', '')),
             data:relation-search(),
             data:orginPlaceSearch(),
+            data:bl-shelfmark(),
             data:ref()
             ) 
         (:
@@ -679,22 +680,22 @@ let $limits :=
     string-join(
             (
             if(request:get-parameter('syrOtherLimit', '') = 'true') then 
-                concat("ft:query(descendant::tei:quote[@xml:lang='syr'],'",($cleanString),"',data:search-options()) or ft:query(descendant::tei:foreign[@xml:lang='syr'],'",($cleanString),"',data:search-options())")
+                concat("[ft:query(descendant::tei:quote[@xml:lang='syr'],'",($cleanString),"',data:search-options()) or ft:query(descendant::tei:foreign[@xml:lang='syr'],'",($cleanString),"',data:search-options())]")
             else(), 
             if(request:get-parameter('syrColophonsLimit', '') = 'true') then 
-                concat("ft:query(descendant::tei:additions/descendant::tei:item[tei:label = 'Colophon'],'",($cleanString),"',data:search-options())")
+                concat("[ft:query(descendant::tei:additions/descendant::tei:item[tei:label = 'Colophon'],'",($cleanString),"',data:search-options())]")
             else(), 
             if(request:get-parameter('syrExplicitsLimit', '') = 'true') then 
-                concat("ft:query(descendant::tei:explicit,'",($cleanString),"',data:search-options())")
+                concat("[ft:query(descendant::tei:explicit,'",($cleanString),"',data:search-options())]")
             else(), 
             if(request:get-parameter('syrIncipitsLimit', '') = 'true') then 
-                concat("ft:query(descendant::tei:incipit,'",($cleanString),"',data:search-options())")
+                concat("[ft:query(descendant::tei:incipit,'",($cleanString),"',data:search-options())]")
             else(), 
             if(request:get-parameter('syrFinalRubricsLimit', '') = 'true') then 
-                concat("ft:query(descendant::tei:finalRubric,'",($cleanString),"',data:search-options())")
+                concat("[ft:query(descendant::tei:finalRubric,'",($cleanString),"',data:search-options())]")
             else(), 
             if(request:get-parameter('syrRubricsLimit', '') = 'true') then                
-               concat("ft:query(descendant::tei:title[@xml:lang='syr'],'",($cleanString),"',data:search-options()) or ft:query(descendant::tei:rubric,'",($cleanString),"',data:search-options())")
+               concat("[ft:query(descendant::tei:title[@xml:lang='syr'],'",($cleanString),"',data:search-options()) or ft:query(descendant::tei:rubric,'",($cleanString),"',data:search-options())]")
             else()
             ),' or ')
 return         
@@ -702,3 +703,12 @@ return
          concat("[",$limits,"]")
     else ()
 };
+
+declare function data:bl-shelfmark(){
+let $shelfmark := request:get-parameter('shelfmark', '')
+let $cleanString := data:clean-string($shelfmark[1])
+return         
+    if($cleanString != '') then
+        concat("[descendant::tei:idno[@type='BL-Shelfmark' or @type='BL-Shelfmark-simplified'][ft:query(.,'",($cleanString),"',data:search-options())]]")
+    else ()
+};
\ No newline at end of file
diff --git a/modules/search/search.xqm b/modules/search/search.xqm
index 883027c..ea74dd5 100644
--- a/modules/search/search.xqm
+++ b/modules/search/search.xqm
@@ -381,6 +381,17 @@ declare function search:bl-search-form($node as node(), $model as map(*)) {
                         </div>
                         <!-- origPlaceLimit -->
                     </div>
+                    <div class="form-group">
+                        <label for="shelfmark" class="col-sm-2 col-md-3  control-label">Shelfmark: </label>
+                        <div class="col-sm-10 col-md-9 ">
+                            <div class="input-group">
+                                <input type="text" id="shelfmark" name="shelfmark" class="form-control keyboard"/>
+                                {if(request:get-parameter('shelfmark', '') != '') then
+                                    attribute value {request:get-parameter('shelfmark', '')}
+                                else()}
+                            </div>   
+                        </div>
+                    </div>
                     <!--
                         <hr/>
                         <div class="form-group">