By Dr. Mercola. Vitamin B12 is fittingly known as the energy vitamin, and your body requires it for a number of vital functions. Among them: energy production, blood formation, DNA synthesis, and myelin formation. Myelin is insulation that protects your nerve endings and allows them to communicate with one another.
Values for most Kennedy half dollars are cheap, except for the prices of couple scarce coins and error coins, of which there many. 1  The 1970-D Kennedy half dollar is the scarcest, worth about $20 in typical uncirculated grades. 2  The 1998-S silver matte finish Kennedy half dollar is worth $500.
If so and is in good condition can sell for about 7-25 dollars each. The value of coins and paper money can vary drastically depending  on date, condition, and various stamping. A 1928 g series 2 dollar  bill with a red seal is worth between $10 and $50.ncirculated ones sell for  $1000 or more.    Red Printing   All 1928 U.S. $2 bills â¦ have red printing, indicating that they are  a form of currency called United States Notes.