So I'm going to ask a little less than what every person with an iPhone 3GS is asking before the seller pays for shipping, I did some search in Listia and I'm gonna say 40,000 coins.
The best way would be a usps small flat rate box that goes for about $5.90 and it will be packed very good, or I can put it on an envelope and pay like $2.45 I think, just for 2 or 3 more dollars it's worth it.
Well, when it becomes to an iphone, the 3G and the 3GS the front was always BLACK and the back on the black one was BLACK, and on the white one the front was BLACK and the back WHITE, Apple didn't change this until iphone 4, THEN that's when the black iphone THE BACK AND THE FRONT WAS BLACK, the white one THE BACK AND THE FRONT WAS WHITE, same as iphone 5 and iPhone 5S, except they added the gold one, and iphone E as we all know is the one with a variety of colors.
I will be using usps small flat rate box, that one goes for $5.90, it's worth it, or I can just put it in a bubble envelope, and ship it for about $3.80