COLOMBIA. Banco de la Republica. 50 Pesos. July 20, 1973. P-414. Face and Back Specimen Proofs.2 pieces in lot. Curious looking pair with TDL imprint. Individual face and back impressions on white bond paper. No overprints on the face and no central details on the back. Control numbers by TDL on each face margin. Choice.Uncirculated.From the Eldorado Collection of Colombian Paper Money.