A.D.1851. Feby. 10, N° 13,504.
THOMAS DE COLMAR'S Specification.		    
 
Fig. 5.1 (1 kB) Fig. 5 (2 kB)   Fig. 4.1 (2 kB) Fig. 4 (3 kB)  
Drawing 2
Fig. 1 (14 kB)
Fig. 3 (8 kB) Fig. 2 (7 kB)
The enrolled drawing is partly colored.
London:Printed by George Edward Eyre and William Spottiswoode,
Printers to the Queen's most Excellent Majesty.  1857.
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