Antique Cameras, such as those on http://www.iantiqueonline, add so much to one's photography interest. One learns of the complexity of cameras and how they have evolved to today's brilliant technology. Three of my favorite cameras, for their looks and their continued use, are: The Leica M3, the Yashica Electro GSN, and the LOMO LC-A (which, although produced in the 1980s, I still consider an antique).
The Leica M3 was a 35 mm range finder camera released in 1954 by Leitz. This camera introduced the view finder and range finder into a single window with a bayonet mount. This mount has been used for half a century, unchanged. This allowed photographers to change the lenses much faster than with a screw mount. The view finder was exceptionally bright and was used critically to focus, especially when dealing with long lenses. The film was still turned by a knob, but it had a double stroke advance lever to prevent tearing the film. The Leica M3 was rather innovative in much of it's design, including the “Leica Glasses” which helped the focal length, although it made the bright view finder darker, and was followed by the M2.
The Yashica Electro GSN was also a 35 mm range finder with aperture-priority automatic exposure, released in 1973. The Yashica was best for shots in low lights, which is something that anyone would want. Unfortunately, this camera I do not know as much about, but I'm sure you can find more on it. I chose this camera because of it's clean, sleek look and the lenses. It's one of the cameras that one automatically pictures when thinking of 1960s-1970s cameras.
The LOMO LC-A is by far my favorite camera, although produced in the early 1980s. When it was first released, no one liked the quality of the photo it produced. But in 1991 almost a cult revived the LOMO and it's distinct look. The LOMO produces an over-saturated, vignette. It's images will have a blurry look with helter-skelter exposure, and a bluish-yellow tint. The LOMOgraphy look is so distinct, photoshoppers have began to recreate it with digital techniques. The look of a LOMO photo is one that instantly reminds one of a vintage photo. Many times over have I produced a photo that had the distinct LOMOgraphy look, that people would swear on it being taken decades ago, when I had taken it just the day before. They're fun little cameras, although they can break easily. These days, you can still buy the LOMO LC-A, in working order, online. And I strongly recommend you do.