Snail Mail/Postal Mail:
Snail Mail refers to trading via postal mail. Back many years ago it was quite popular to trade physical CDR’S & DVD’S through postal mail. Its not unlike trading today. Traders exchange a wants list and decide who sends first and thus the trade starts. You spent time burning out discs for the other trader and then packaged them up into CD Sleeves & Bubble Mailers to send off to the other trader. Snail Mail is considered a form of offline trading.
Some forms of Snail Mail trading are B&P, 2:1 & Vines!