FINE ANTIQUE 19th CENTURY LACQUERED BRASS DALLMEYER PETZVAL? CAMERA LENS #3 For Sale

FINE ANTIQUE 19th CENTURY LACQUERED BRASS DALLMEYER PETZVAL? CAMERA LENS #3
In good condition, but lacks the focusing knob and attachment. Lacquer good. The rear element is approximately 2 inches in diameter (fractionally under). Slot for taking Waterhouse stops. Overall length approximately 4 inches. Marked J H Dallmeyer, London 5090. From a collection of antique camera lenses that I am listing today. Please have a look.
As you can probably tell, I don\'t know much about antique camera lenses, but I will do my best with any questions.
Photos are a fair representation of the condition.