Just open the next to last package. It has a 1965, 1966 and a 1967 Special Mint Set in the folder. The invoice says I paid $9.99 for each one and no shipping. If the past is anything like it will be in the future, every coin you buy will be sold for higher than you paid. Some, only a small amount. Others, double or triple what you paid and a few will be worth a small fortune.
Sort of. I paid $10 for my 1971-S "brown box" Ike from the mint. I can get one right now on ebay for around $20 including shipping. $10 in 1971 is almost $83 today, so really they're selling for 75% less than what I paid.