[VB.13L]                                                              [VB.13]							13
                                                                      
[blank]                                                               			no joint I think
                                                                      		[diagram]
                                                                      
                                                                      
                                                                      
                                                                      		four bricks [?] long [?]
                                                                      		12 such on each side of the
                                                                      		arch reach a little
                                                                      		below dripstone
                                                                      		5 more go to bottom

[Version 0.05: May 2008]