Error Showcase: 1998 Lincoln Cent Struck on a 1997 Roosevelt Dime

Today's subject is a double denomination error that answers the question - what do you get when you feed an already struck dime into a one cent coin press?  Eleven cents, of course!  The example shown below is outstanding for several reasons.  Two different dates are visible.  Lincoln and Roosevelt's profiles are well struck, aligned and superimposed.  The condition is a strong NGC MS 67.  See more photos and the full description at: eBay item 251927445141

photo credit: ebay sullivannumismatics

Error Showcase: Lincoln Cent Struck on a Nail

One step beyond a wrong planchet error is the non-planchet error which occurs when a foreign object is struck in a coin press.  In the example shown below, PCGS identified the object as a nail.  The head and edge thread evidence suggest a bolt which is a more common fastener in the machine intensive Mint environment but that point is trivial in light of the sensational appearance of this error.  See more photos and the full description at:  eBay item 291482789807

photo credit: ebay sullivannumismatics

Error Showcase: 1981 Lincoln Cent Die Cap on Jefferson Nickel Planchet

Off metal errors happen when a planchet for one denomination is accidentally fed into the coin press setup to strike a different denomination.  For example, a Roosevelt dime planchet may be fed into a Lincoln cent press, resulting in a collectible wrong planchet error.  In almost every case the wrong planchet has a smaller diameter than the appropriate planchet.  Equipment configuration and/or process steps seem to prevent oversized planchets from being fed and struck.  The subject of this showcase is interesting because it is evidence of an oversized wrong planchet error - a PCGS certified Lincoln cent struck on a Jefferson nickel planchet.  See more photos and the full description at: eBay item 251377244021

photo credit: ebay drbberger

Error Showcase: 1972-S Roosevelt Dime Double Struck Proof 67 Cameo

Error Showcase is a new feature that highlights interesting numismatic errors found on eBay.  Proof errors are as rare as hen's teeth due to the extra quality assurance efforts applied by the United States Mint.  Here's one that got away and it's a beauty, a 1972-S ten cent double struck with obverse rotation graded mint error PF 67 Cameo by NGC.  See more photos and the full description at:  eBay item 321849637892

  photo credit: ebay richerrors

Auction: US Roosevelt Dime - Double Struck Both Strikes Off Center - NGC MS-65

Auction host: eBay
Item number: 151657388984
End date and time: Tuesday April 28, 2015 at 18:34:27 PDT
Composition: clad
Error: double struck both strikes off center
Condition: NGC MS-65 (serial number 3836840-002) 
Result: sold $135.83

Auction: 1977 US Washington Quarter - Off Center Strike - ANACS MS-65

Auction host: eBay
Item number: 151657380292
End date and time: Tuesday April 28, 2015 at 18:21:35 PDT
Error: off center strike
Condition: ANACS MS-65 (serial number 2630149) 
Result: sold $36.00

Auction: US Roosevelt Dimes - Off Center Strike - Bulk Lot of 5

Auction host: eBay
Item number: 161610246324
End date and time: Saturday Feb 28, 2015 at 18:19:15 EST
Error: off center strike obverse and reverse
Visible complete dates: 1967 and 1991
Condition: raw ungraded
Result: sold $51.00

Auction: 1999-P US Georgia State Quarter - Off Center Strike

Auction host: eBay
Item number: 161680771640

End date and time: Tuesday April 28, 2015 at 18:32:41 PDT

Multiple errors: off center strike and minimal edge reeding
Condition: raw ungraded, see 12 high resolution photos in auction listing 
Result: sold $12.50

Auction: 2000-D US Virginia State Quarter - Off Center Strike

Auction host: eBay
Item number: 151579574343
End date and time: Thursday Feb 12, 2015 19:30:11 EST
Multiple errors: off center strike and no edge reeding
Condition: raw ungraded, see 12 high resolution photos in auction listing
Result: sold $9.99

auction link