Have a chance to pick up one of these for a good price from a local church......the second one is still mounted on the wall and wont be available for a week or 2...

I know NOTHING abt these ....can someone clue me in to pertinent nfo/value ??

b4 posting a "search/do your homework" post , I have...but find some conflicting
opinions on these and not really a conscientious.