If you do a search on Kershaw cameras on the bay, you will be sure to find heaps of Penguins or "King Penguin". This is a very simple 6x9 folder with a meniscus lens and a performance to match. Kershaw made much better cams too.
A range of 6x6 folders named after the max aperture is frequently seen on the bay. The smaller the max aperture, the simpler the shutter.
The Kershaw 110 is a very simple cam, the 630 has selectable aperture and shutter. The "top" of this range (AFAIK) is the Kershaw 450.
The 450 has an aperture range fro f22 to f4.5 and its Velio shutter is speeded B, 10, 25, 50, 100 and 200. Wow! The lens is an 80mm Anastigmat 3 element "Otar". Nicely made but not expensive looking.
They have a simple shutter release button (which can take some time to find if the user is not familiar with it) that gives a nice direct feel to the release.
My example had a sticky shutter, removed from the body and flushed out, it now works very well, (except the 10th). No light leaks, bellows are a plasticy fabric which seems to have held out well and has that smell of old impregnated electrical insulation tape (Blakely tape?)
This was one of my first folding cam purchases and has spent time in a box, then as my car cam. It's now one of my favourite cams. I like the look of the images it can make.
Park bench (again) showing some of the swirly oof area building.
Kershaw made a range of folders with names based on birds, Raven, Curlew, Peregrine. Some of these were top class cams. Anyone got one to show off?