1897 Mexico Mulita Covers

5729- 1897, MEXICO TO US, VIA REGISTERED MAIL, STAMPS AND BACK STAMPS ON BACK

5733- 1897, OFFICIAL USAGE TO BELEN PRISION, FROM WHERE?

5743- 1896, REGISTERED TO NEW YORK CITY, 15¢ BLUE STAMP + WAX SEAL ON BACK

5745- 1897, MARAVATIO TO MEXICO, 3¢ + (2) 1¢ STAMPS

5734- 1897, PICHUCALCO TO MEXICO, BACK STAMPS