Received a mint condition pair of Swift Audubons this morning. The clouds must have been following the USPS truck, 😆. Not sure how old they (s/n starts with 86xxxx) but they are Mark II and model 804R. They glass and coatings are excellent. No internal fogging or fungus either! They appear complete less the eyepiece caps. Focuser is very smooth, so probably won’t take them apart. This was one of those wish I hadn’t offered offers because they were more than I usually want to spend and I need another pair of binoculars like a hole in the head but I have read many great reviews about them and curious. I knew they would probably be excellent by the photos. Now that I have received them they are absolutely worth (to me) what I paid.