anchor.diff:        </dl>
       </div>
     </div>
  +
     <div class="clearfix">
  -    <nav>
  -      <ul class="nav nav-pills pull-right">
  -        <li><%= link_to "Zurücknehmen", returning_form_path(old_folder_instances: [old_lend_out.old_folder_instances.first]), class: "btn btn-primary" %></li>
  -      </ul>
  -    </nav>
  +    <% if old_lend_out.receiver.nil? %>
  +        <nav>
  +          <ul class="nav nav-pills pull-right">
  +            <li><%= link_to "Zurücknehmen", returning_form_path(old_folder_instances: [old_lend_out.old_folder_instances.first]), class: "btn btn-primary" %></li>
  +          </ul>
  +        </nav>
  +    <% end %>
     </div>
  +
   </div>
positive.code: <div class="card shadow">
    <div class="full-width">
      <h3 class="pull-left"><%= old_lend_out.id %> - <%= old_lend_out.imt %></h3>
      <h3 class="pull-right"><%= old_lend_out.lendingTime %></h3>
    </div>
    <div class="full-width">
      <div class="half-width">
  
negative.code:         <dd><%= old_lend_out.weigth %></dd>
          <dt>Raus von</dt>
          <dd><%= old_lend_out.lender %></dd>
          <% unless old_lend_out.receiver.nil? %>
              <dt>Raus am</dt>
              <dd><%= old_lend_out.lendingTime %></dd>
              <dt>Rein von</dt>
              <dd><%= old_lend_out.receiver %></dd>
              <dt>Zurück am</dt>
              <dd><%= old_lend_out.receivingTime %></dd>
  
          <% end %>
        </dl>
      </div>
      <div class="half-width">
  