1998 Canadian 10 Cent
Struck on Unplated Multi-Ply Planchet
Intended for 1999 Test Pieces
PCGS MS 64 RD
ex Fred Weinberg
One of Only Two Known
$5,000

In 1999, The Royal Canadian Mint produced a small number of test coins for the vending industry using new multi-ply plated steel planchets. A "p" for plated was added to the design and is located under the effigy of the Queen. The Royal Canadian Mint struck test coins in 1999 and 2000 on new experimental planchets with a thin coating of nickel, then copper, then nickel again onto a steel core.

The Royal Canadian Mint accidentally struck two of these experimental planchets when the 1998 Dimes were being produced. The two planchets were not fully plated and show the bright red copper layer. With only two known, this is an extremely rare mint error since the experimental planchet was not fully plated and were accidentally struck with 1998 Dime dies.

Fred Weinberg discovered these two rare mint errors, had them authenticated and certified by PCGS and placed them in his collection. Mint Error News featured an article on some of his world mint error including one of the two known 1998 test pieces.

Below is the official set from the Royal Canadian Mint that contained a medallion and uncirculated test coins that were among the first to be produced using the patented coin-plating process from the Royal Canadian Mint's Winnipeg plating facility.

Fred Weinberg discovered these two rare mint errors, had them authenticated and certified by PCGS and placed them in his collection. Mint Error News featured an article on some of his world mint error including one of the two known 1998 test pieces. Click below to read the full article...

Experimental Strikes are featured in
my NLG Award winning book,
World's Greatest Mint Errors.