The first set:1945 March 12 20th anniversary of the death of the founding fathers, serial number: Ji Min 15, a full set of 6 stamps, with face values of 2 yuan, 5 yuan, 6 yuan, 10 yuan, 20 yuan and 30 yuan respectively. A brand-new set in the postal currency trading market is worth about 180 yuan, and the cancellation ticket is worth about 40 yuan. One of your stamps is incomplete. The value of new stamps is about 150 yuan, and the value of old stamps is about 3 1 yuan.

Second set:1948 August 16 Commemorative Stamps for the 75th Anniversary of China Merchants,No.: Ji Min 28, a full set of 4 stamps with face values of 20,000 yuan, 30,000 yuan, 40,000 yuan and 60,000 yuan respectively. A brand-new set is worth about 40 yuan in the postal currency trading market, and the value of invalid tickets is about 8 yuan.