[Game] World Coins Time Machine… Counting Backward by Year! (Plus Prize Coin)

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For 1618, here's a four reales from Mexico. While the date is off the flan, the over-assayer D over F puts it in 1618. Dan Sedwick says the D/F over-assayer examples with dates show an overdate of 1618/17, but since my coin is completely missing the date I'm going with 1618.

Mexico, Philip III, 4 reales, assayer D over F (1618).
KM-unlisted over-assayer
13.52 grams


For 1617, I have a few coins.

Here is an 8 reales salvaged from the Atocha.
Viceroyalty of Peru, Philip III, Potosi, 8 reales, 1617 M.
Atocha Reference Collection no 208
27.2 grams


Netherlands, United Provinces, Gelderland, lion daalder, 1617.
Davenport 4849
27.04 grams


Spanish Netherlands, Albert and Elizabeth, Antwerp, AR patagon, 1617.
KM 35
27.9 grams


Germany, Brunswick-Wolfenbüttel, Frederick Ulrich, 1617.
KM-52.1; Dav-6303
28.81 grams