THE MERCURY DIME SEMI KEY DATES , ARE AS FOLLOWS THE 1921-P, 1921-D, 1926-S, 1930-S AND OF COURSE THE 1931-D AND 1931-S. TO THE MERCURY DIME COLLECTOR, SUCH AS MYSELF, MOST OF THE HOBBY'S FOCUS  ( AND HYPE )  SEEMS TO BE ON THE FAMOUS 1916-D , AS WELL AS THE AMAZING OVERDATE  MERC. COINS P&D OF 1942.

BUT , MOST COLLECTIONS LACK THESE THREE COINS, SO I HAVE FOUND IT VITALLY IMPORTANT , TO HAVE "EVERYTHING ELSE" ( IN MY CASE TWICE, AND COUNTING ) MEANING, SEMI-KEYS. FIRST , THERE ARE THE 1921 'S P& D . THE REAL CHALLENGE, FOR THOSE OF US ON A BUDGET , IS FINDING EITHER ONE OF THESE IN A COLLECTABLE GRADE FOR UNDER 100.00 . THE '21-P IS ABIT EASIER TO FIND IN G-4 TO F-12 , TRENDS ARE BETWEEN 45.00-125.00, WITH A NICE G-6 COIN COULD BE HAD FOR 60.00 OR LESS. THE '21-D , HOWEVER, IS ANOTHER STORY , THE LOWER MINTAGE OF THE TWO '21 COINS , ( JUST OVER 1 MILLION )  TREND RANGE IS BETWEEN G-4 TO F-12 IS 63.00 -205.00 IF YOU CAN FIND ONE !!!!  ( ALSO BEWARE OF ALTERED '21-D COINS ) MANY COLLECTORS , LIKE MYSELF, AGAIN, ON A BUDGET ARE FORCED TO EITHER SETTLE FOR A LOWER GRADE PIECE OR , ( IF YOU CAN ) PAY ABOVE THE TREND ,AS THE '21-D IS A VERY DESIRABLE COIN . NEXT, IS THE 1926-S, WITH A MINTAGE OF JUST 1.5 MILLION, THIS IS A MUCH MORE BUDGET FRIENDLY COIN, THE TRENDS ON THIS COIN BETWEEN F-12 TO VF-20 ARE 25.00 TO 55.00, BUT EF IS 225.00!!!!! INDICATING THAT HIGHER GRADES ARE MUCH SCARCER. I THINK THE '26-S IS A SLEEPER COIN, WITH A MINTAGE OF ONLY ABOUT 300,000 MORE PIECES THAN THE '21-P, ITS PRICES DO NOT YET REFLECT THE RELATIVE SCARCITY  OF THIS DATE WHEN COMPARED TO THE '21-P, I BELIEVE THIS IS A DATE TO WATCH. NEXT, IS THE 1930-S, WITH A MINTAGE OF ONLY 1.8 MILLION, THIS COIN IS REALLY A BARGAN, THE TRENDS FINE TO AU 5.00 -45.00!!!!! THIS  DATE IS VERY UNDERRATED AND I THINK  COULD INCREASE GREATLY IN COMING YEARS ANOTHER DATE TO WATCH CLOSELY. NEXT ARE THE TWO 1931 COINS D&S.  THE '31-D IS CLEARLY THE BETTER DATE OF THE TWO WITH A MINTAGE OF JUST 1.2 MILLION , AND YET THE TRENDS ARE VERY REASONABLE BETWEEN G-4 TO EF-40 THE  LIST ON THIS DATE  RANGES  FROM 9.00- TO 32.50 !!!   FINALLY, THE 31-S WITH A MINTAGE OF 1.8 MILLION IS ALSO  QUITE A REASONABLY PRICED DATE AT BETWEEN THE GRADES OF FINE -12 -AU-50, THE LIST RANGE IS 5.00-44.00 !!!!!! SOME OF THESE SEMI KEY DATES ARE VERY MUCH WORTH A SECOND LOOK , AS MOST ARE UNDERRATED AND OVERDUE FOR BIG INCREASES THANK YOU  ________ DANNY ANABLE " THE CANADA COIN NUT " AUGUST, 2006