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
Flans "Flans", was launched in 1985. Their style was mainly pop music and ballads although one of their albums ("Cuéntamelo Dum-Dum") was somewhat child-oriented. The group released a new album every year until 1991 when they separated, with a national tour and the release of their "last" album: "Adiós". After their separation, Ivonne married and devoted herself to painting; Mimí and Ilse started solo careers, with Mimí also being the host for a TV show. Rumors of a reunion started in early 1999 and were confirmed with a performance at the Acapulco Milenio Festival, followed by a tour which included several