English-room drawers built around 1855; Manufactured by"" BLAND & Co, OPTICIANS to the QUEEN"" 153 FLEET STREET, LONDON"" . Construction wood, varnished mahogany and brass. The plate size is 8.5 x 17 cm. For transport, the interior of the unit is folded, it can also be stored inside objectives and chassis (missing). Original leather handle serves as The key locks the entire device. A device extremely rare and primitive around 1855. This manufacturer is very rare on the market. English royal court is a client. The company ceases its activity in 1875. The only known worldwide. A magnificent aircraft.