Ahoy there matey this spy glass is fun to look through or use for decoration. Something you don't find everyday for sure. This has some very nice patina- closed it measures about 8.5 inches. Opened it measures about 24" It appears to be in very good condition for age. All parts work well including the sliding shutter for eye piece and large lens protector, has a good firm snug fit. All brass sections unscrew for cleaning and have excellent threads. Leather is in excellent condition and seams are tight. I found no makers marks so do not know when it was made. Works well at close and far range.