Variants: Guns from Unknown Series

Help me place these guns.
Do you know when and where they were made?
Do have a picture of the original packaging?

Email me at maxfield@mcw.edu



This is the cylinder of a bullet loading version of the Civil War Revolver. Unlike the standard model it is bored through to chamber six tiny bullets. All models have a notch in the center plate, but most have a solid back cylinder, and would not take bullets.

 
Here are two long barreled versions of the Detective Revolver. Where do they belong? The black gripped one looks like it may be an older model from Japan. I think the silver one may be a prototype of a very good custom job.

This is a Army Automatic in silver rather than gold or black. Did it get dipped in the wrong vat, or is it from a set I've not seen?