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                    3 Leveling Instruments...
                 - 
                    
																									  
                                            
                    La Filotecnica Precision Theodolite, 1915...
                 - 
                    
																									  
                                            
                    French Graphometer by Gondelar, Paris, c. 178...
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                    5 Surveying Instruments...
                 - 
                    
																									  
                                            
                    Theodolite by Pistor & Martins, c. 1865...
                 - 
                    
																									  
                                            
                    3 Leveling Instruments...
                 - 
                    
																									  
                                            
                    3 Surveyor's Crosses, 1820-40...
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                    7 Wood Boxes for Surveying Instruments, c. 18...
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                    Irish Circumferentor by Walker & Son, c. 1805...
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                    Wild T2 Theodolite, c. 1930...