I think there are 3 versions of African Hunter II. The 1500 dollar, 375, and 135. They are all the same book but the 1500 and 375 come signed and I think there are only 50 of the 1500 and 400 of the 375. The more expensive ones also come in a slipcase. I got the 375 one as a gift. It is an excellent book as a reference.