A type 1 original photo is developed off the original negative at the time the photo was taken(winthin approx 2 years). Type 2.. same thing. It developed later(after 2 years). Both developed of ORIGINAL NEG.
A wire photo is a product of a wire machine. They can also be done at the time the photo was taken. However, they are created in a much different way and the photo quality is not close to as good. It is done with a series of lines one after the other. How the picture is established is extreme lights to darks and everything in between on each line. Wires are type 3s in the type system.
So.. if you look closely and under magnification, you will actually see the lines that compose a wire photo.
Re stamps: sometimes a stamp will literally say wire photo or give a exact time the wire was received. Many times you won’t be able to tell by stamps alone. You need to look at clarity and what i mentioned above. Also, many wire photos if not trimme, have the embedded caption on the front.
I wrote this on phone with voice to text so sorry if things are lost in translation. Pm me if you need more info or have other questions as i am always willing to help new photo guys. Ben
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