[GB.17L]                                                              [GB.17]							 17
                                                                      
                                                                      
[diagram]  D                                                          Agnese Venier
                                                                      	Agnese.
[diagram]  E	[diagram]  F.                                            
                                                                      	[diagram]  A  undercut
		observe meeting                                                     
		Line below not above                                                [diagram]  B		[diagram]  C   joint
		[?]                                                                 
                                                                      
                                                                      [drawing]	Capital of niche
                                                                      
                                                                      		The roses of the
                                                                      		arch plinth have
                                                                      		their central boss
                                                                      		ball flower; while
                                                                      		in the early plinths
                                                                      		the whole rose is a mere
                                                                      		ball.

[Version 0.05: May 2008]