A bit of googling turns up this forum thread with lots of pictures of old (and not so old) multimeters. A few typical pages: http://www.eevblog.com/forum/chat/s

A bit of googling turns up this forum thread with lots of pictures of old (and not so old) multimeters. A few typical pages: http://www.eevblog.com/forum/chat/show-your-multimeter!/540/ http://www.eevblog.com/forum/chat/show-your-multimeter!/540/ http://www.eevblog.com/forum/chat/show-your-multimeter!/465/ http://www.eevblog.com/forum/chat/show-your-multimeter!/465/ Lots and lots of not-yellow multimeters, and the dark-with-yellow-surround ones do generally seems to be Flukes. But not quite all. There are some exceptions here: http://www.eevblog.com/forum/chat/show-your-multimeter!/315/ http://www.eevblog.com/forum/chat/show-your-multimeter!/315/ but I think they may all be recent enough to postdate Fluke's trademark (which I think was granted in 2003).