1967 $20 Coombs Randall R402 First & Last Prefix Pair

The 1967 $20 Coombs Randall R402 is a very difficult signature combination to come by and regarded as perhaps the most difficult signature combination of the entire $20 series to acquire in good condition. A XBQ & XBS First & Last Prefix example is tougher again to acquire. This First & Last prefix pair are…