1 files changed, 40 insertions, 0 deletions
diff --git a/src/mintage/mintage.go b/src/mintage/mintage.go
new file mode 100644
index 0000000..cc94de7
--- /dev/null
+++ b/src/mintage/mintage.go
@@ -0,0 +1,40 @@
+package mintage
+
+type Data struct {
+	Standard      []SRow
+	Commemorative []CRow
+}
+
+type SRow struct {
+	Year     int
+	Mintmark string
+	Mintages [denoms]int
+}
+
+type CRow struct {
+	Year     int
+	Name     string
+	Mintmark string
+	Mintage  int
+}
+
+const (
+	TypeCirc = iota
+	TypeNifc
+	TypeProof
+)
+
+const (
+	Unknown = -iota - 1
+	Invalid
+)
+
+const denoms = 8
+
+var cache map[string][3]Data = make(map[string][3]Data)
+
+func ClearCache(country string) {
+	if _, ok := cache[country]; ok {
+		delete(cache, country)
+	}
+}