Mexico 1318-1321a strip/label

Mexico 1318-1321a strip of 4/label, MNH, $2.75. Michel 1865-1868 fs, Euros 4.00. Tourism 1983. Federal Palace Building, Queretaro; Fountain, San Luis Potosi; Cable car, Zacatecas; Mayan Stone head, Quintana Roo. The strip is folded along perforation - each stamp.