Contracts of Employment (Indigenous Workers) Convention, 1947 (shelved) is an International Labour Organization Convention. It was established in 1947 with the preamble stating: Having decided upon the adoption of certain proposals concerning the maximum length of contracts of employment of indigenous workers,... Ratifications Prior to its shelving, this convention was ratified by 26 states. External links Text. Ratifications. Shelved International Labour Organization conventions Treaties concluded in 1947 Treaties entered into force in 1953