Coinage

1 Gold Crown (Pure Gold) = 10 Silver Crowns

1 Half Gold Crown (Pure Gold) = 5 Silver Crowns

1 Silver Crown (Pure Silver) = 10 Silver Pennies

1 Silver Penny (Silver/Copper alloy) = 10 Copper

1 Copper ( Pure Copper) = 10 Copper Pennies

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1 Copper penny (Bronze)

Current tradeable resources in Bicman

Grains, Vegetables, Chalk, Apples, Cider, Livestock, Iron, Copper, Cement, Coke, Lime, Linen

Currently available goods for taxes

Chalk, Iron, Grain

Exports

Paper- Vaspar

Inventions

Paper, paper airplane, abacus, books, plow, coke, horse collar, horseshoe, stirrup, advanced loom, concrete, leaf spring, dip pen, buttonhole, zero, double-entry bookkeeping.

Inventions created in Bicman that are now available to be produced elsewhere

Horseshoe, abacus, zero, leaf spring, dip pen, buttonhole, stirrup

Note: I did not include the horse collar because the value of it wasn't apparent to the people of Vaspar.