diff --git a/src/config.ml b/src/config.ml
index d25883ec..1c4aa51f 100644
--- a/src/config.ml
+++ b/src/config.ml
@@ -495,6 +495,48 @@ module Coin = struct
   let age_restricted : [ `YES | `NO ] = `NO
 end
 
+
+
+VALUE
+   Value of the coin, e.g. “EUR:1.50” for 1 Euro and 50 Cents (per
+   coin).
+
+DURATION_WITHDRAW
+   How long should the same key be used for clients to withdraw coins of
+   this value?
+
+DURATION_SPEND
+   How long do clients have to spend these coins?
+
+DURATION_LEGAL
+   How long does the exchange have to keep records for this denomination?
+
+FEE_WITHDRAW
+   What fee is charged for withdrawal?
+
+FEE_DEPOSIT
+   What fee is charged for depositing?
+
+FEE_REFRESH
+   What fee is charged for refreshing?
+
+FEE_REFUND
+   What fee is charged for refunds? When a coin is refunded, the deposit
+   fee is returned. Instead, the refund fee is charged to the customer.
+
+CIPHER
+   What cryptosystem should be used? Must be set to either "CS" or "RSA".
+   The respective crypto-helper will then generate the keys for this
+   denomination.
+
+RSA_KEYSIZE
+   What is the RSA keysize modulos (in bits)?  Only used if "CIPHER=RSA".
+
+AGE_RESTRICTED
+   Setting this option to ``YES`` marks the denomination as age restricted
+   (default is ``NO``).  For this option to be accepted the extension for age
+   restriction MUST be enabled.
+
 (* Crockford Base32-encoded master public key, public version of the exchange’s long-time offline signing key. *)
 let master_public_key = "uhuh"