Mint-made errors are called "type-2 blanks (or planchets)" after an upending mill adds uniform, rounded rims. Type-2 blanks may also be considered striking errors as they are prepared correctly, but are released without having been struck. A misfeed can occur when the metal strip is fed through the blanking machine. The punches sometimes overlap the leading edge of the metal producing a straight clip. Sometimes, the punches strike an area of the strip which overlaps the hole left by the previous strike producing a curved clip. Sometimes punches strike the irregular trailing edge of the metal strip producing irregular clips. Coins are
Blanks and Postage Blanks and Postage Blanks and Postage (often abbreviated B&P) is a method of acquiring recordings, typically live music, by mailing blank CD-Rs or DVD-Rs and a self-addressed stamped envelope to an experienced trader. The trader copies the desired recordings to the discs and mails them back in the envelope, receiving nothing for the service. B&P offers are most frequently found on internet music forums and are usually intended for those who wish to obtain live recordings but have few of their own to trade. The increased use of broadband and peer-to-peer file sharing applications such as BitTorrent has made B&P