Watch List notes:

FRENCH INDOCHINA: 10 cents, 1937, KM-E28, Lec-173, copper-nickel essai, PCGS graded Specimen 66, RR. A rare pattern for a non-silver coinage which would have been disastrous had it been implemented. We note a PCGS SP66 of the more common pure nickel (Lec-172) hammered for €1100 in MDC Monaco Auction 1, Lot 579.

Estimate: 600-800 USD