There are lots of mixed type 1 and type 2 1981 proof sets. A type 2
set by convention must contain only type 2 coins. Mixed sets
typically sell for the combined value of the coins in the set and with
a type 1 SBA that won't be a lot. Type 2 sets are scarce enogh that
there is usually about a 20% premium to the combined value of the
coins in the set.