1 colon 1977 specimen

Uncommon. While the base P-125 design was issued across 1977-1980 with a reasonable print run, specimen notes represent a small fraction of total production and were primarily distributed for reference purposes to banks and collectors. The eBay price data shows recent sales in the $75-91 range for graded examples, which is moderate but indicates limited collector demand relative to circulation issues. Specimen overprints typically reduce desirability compared to regular circulation issues, making this a scarce but not rare variant within its Pick number.

Issued in 1977 during a period of modernization in El Salvador's monetary system, this note commemorates the nation's Cerron Grande hydroelectric dam, a symbol of industrial progress and national infrastructure development. The reverse features Christopher Columbus, reflecting El Salvador's historical connection to Spanish colonial heritage and its role in broader Latin American economic development. The Central Reserve Bank of El Salvador issued this denomination to facilitate commerce during a decade of significant economic and political transition in the country.

The obverse features a detailed engraved landscape centered on the Cerron Grande hydroelectric dam, El Salvador's major power generation facility, depicted with its reservoir, surrounding mountain terrain, and associated infrastructure. The denomination 'UN COLON' appears on the left side, with large ornamental numerals '1' in all four corners. The reverse showcases a formal portrait of Christopher Columbus rendered in classical profile style within an ornate circular medallion, facing left, rendered in historically appropriate 18th-century attire. The national coat of arms with radiating design appears on the right side of the reverse. Both sides feature intricate decorative borders with fine line work and ornamental patterns characteristic of high-security currency design. The note employs a multicolored underprint on the front (blacks, tans, greens, and blues) with the reverse predominantly rendered in red and pink.

FRONT SIDE: 'EL BANCO CENTRAL DE RESERVA DE EL SALVADOR' (The Central Reserve Bank of El Salvador); 'PAGARÁ EN EFECTIVO AL PORTADOR' (Will pay in cash to the bearer); 'SAN SALVADOR' (San Salvador); '7 DE JULIO DE 1977' (July 7, 1977); 'UN COLON' (One Colon); 'SERIE AG' (Series AG); 'MUESTRA SIN VALOR' (Specimen without value); 'PRESA HIDROELECTRICA' (Hydroelectric Dam); 'DIRECTOR', 'PRESIDENTE', 'GERENTE' (Director, President, Manager — signature lines); Serial number: '00000000' (specimen format). BACK SIDE: 'BANCO CENTRAL DE RESERVA DE EL SALVADOR' (Central Reserve Bank of El Salvador); 'UN COLON' (One Colon); 'MUESTRA SIN VALOR' (Specimen without value); 'CRISTOBAL COLON' (Christopher Columbus); 'THOMAS DE LA RUE & COMPANY, LIMITED' (Printer attribution).

Intaglio (engraved) printing on banknote paper, executed by Thomas de la Rue & Company Limited of London, one of the world's foremost security printers. The fine line work, intricate portraits, detailed landscape rendition, and complex border patterns are characteristic of traditional intaglio security printing methods. The multicolored printing on both sides demonstrates advanced four-color or multi-color intaglio capability. No watermark is present on this specimen example.

This is cataloged as P-125s (specimen note variant). The visual analysis confirms this is specifically the 1977-dated specimen issue with 'MUESTRA SIN VALOR' red diagonal overprint and Series AG designation. PMG records indicate at least two main varieties exist under the P-125 base number (P-125a and P-125b, with P-125b attributed to TDLR printer), suggesting multiple printing runs or signature variations. The 1977 date shown on this note places it at the beginning of the stated 1977-1980 issuance period. The specimen serial number (00000000) and lack of standard serial number variants confirm this is an official specimen production, not a circulation note.