Cook lens coating

[mhayashi]

Good evening Hugo.
Which generation do you have of IIA?
There are many discussions in the LFPF threads as you know, but
1. I normally drop lens cleaner first then unscrew
2. Clean the borders of brass barrels with wooden toothpicks and kroil as needed if I observe verdigris.
3. If I can’t unscrew the barrels, my last option is using two belt wrenches but I need to be very careful using these, as forcing could result in bending the brass. I don’t choose this option if it’s unnecessary unless I can’t clean the inner surface without doing so, or let alone if the haze is minimal, or my last option is to ask Gidou-san of Toyo camera service in Tokyo….

[Mark Sawyer]

I would say buy it if the price is reasonable. As it's all single uncemented elements, they should clean up upon disassembly. If it proves to difficult and you can't find a repair shop, you would have no trouble reselling it here with full disclosure. (I'd be interested, as I'm sure many others here would.) Or you may find it shoots fine as-is.

Cooke Portrics are very fine lenses, and quite rare. If it's your dream lens, go for it.