cover 1927 envelopes (4, two to Russia and two "red band") displaying the following frankings: 1926 5m., 20m. (defective) with China Due 2c. + 10c. & Junk 4c., 1926 25m. with China Due 2c. + 5c. pair, 1926 25c. + 50c., and 1926 25c. An interesting quartet.