Liberia Scott # 332-37 C68-69, Issued in 1952.  MNH.  For many years a "NORMAL" set of these color trials was considered 29 stamps.  This is that set.  (Six  additional stamps have been discovered making a total of 35 varieties for a complete set).  These additional six stamps are quite scarce.  There will be many less sets available of the 35.  I have only had a few sets of the 35.  

I no longer ship to Russia, China, Vietnam, Italy, Croatia, Romania or Thailand without registered mail.  Shipping to other countries outside the US may require registered mail for an additional $17.50 for shipments valued over $25.00.  If this is an issue please contact me before purchasing.