Has any one ever heard about or know about a 1928 S DDO Lincoln Cent. I think I found one today at a show and bought it. It looks like the doubleing is above the letters in TRUST. I will try to post some pics soon. Thanks Nickeldude
Cherrypicker's doesn't list a 1928-S DDO, but they do list a large-mintmark and small-mintmark variety (the large mintmark being the more valuable of the two.) The CONECA website (http://hermes.csd.net/~coneca/) does not list any DDO for any 1928 cent. You most likely have machine doubling.
Machine doubling is,, Machine doubling, mechanical, shelve, strike, ejection pretty much mean the same thing - the dies works loose, slipped or scooted at or near the milli-second of striking causing a flat shelf like type of doubling not associated with a true doubled die. A true doubled die occurs during hubbing and coveys in the stuck coin a extra image usually directly on top of or slightly ajar of the primary image. A doubled die will show generally thick doubling of devices , numbers, letters with an extra image juxtaposed over the primary image or doubling, usually with splits in the serifs - ie: doubled die - also there are many types (classes) of true doubled dies. There is a very good post on here describing true doubled dies and well worth the read. There are no known doubled dies for a 1928-S Lincoln cent - one of my students found and submitted a 1928-P DDO a couple years ago to the Wexler files but no 28-S that I am aware of. Look at your coin, see the doubling and think to yourself, "does this doubling look scooted, pushed or pulled and are there other area of the coin with the same type of flat shelf like doubling???? If the answer is yes you probably have a mechanically doubled coin - ie: the dies worked loose. "Remember a coin struck twice does not a doubled die make" Don't feel bad or over whelmed with all this info. that you may not understand yet - I know dealers who have been in the business for 25 years who can only see "the big ones" (ones in Red Book or Cherry Picker's) and can't (for the most part) tell a doubled die from a big brown cows rear. I will be glad to help you anytime - A Cherry Pickers Guild would be of major help also as it has chapters specifically devoted to determining true doubled dies from other forms of doubling. Hope this helps you. Ben Peters