This 2,000 Costa Rican colon banknote is a specimen of the 2005 version of the 2,000 Colon note designed by Marco Morales Salazar. It bears the date 14 de Setiembre de 2005. Its obverse side features the Cocos Island and Clodomiro Picado Twight (also known as Clorito Picado), a Costa Rican scientist who pioneered the research of snake venoms and the development of anti-venoms and whose research on molds was the precursor to the discovery of penicillin. Its reverse side depicts a hammerhead shark and a dolphin swimming in a coral reef. Security features of the note include a windowed security thread with demetalized BCCR 2000 and a watermark of Clorito Picado. Because it is a specimen note, it has a diagonal red MUESTRA SIN VALOR overprint on both sides, a horizontal ESPECIMEN NO. overprint, and an all-zero serial number. This note is 156 mm long and 67 mm wide. It is in uncirculated condition and TAP Authenticated by Banknote World experts.