I have seen this axe appear and reappear on ebay. It had always cought me eye but I have always been very suspisious of traders around Indonesian ruled Papua. However looking through "The shadows of New Guinea, arts of the great island of Oceania, the collections of the Barbier-Mueller" {I have the French version} a wonderful example is illustrated. I could see that the axe that interested me did indeed follow a tradition and clearly not antique has none the less some age. So I bought it!!!!
Okay it is not lovely like the books example but you have to start somewhere. Also I am into stone I love carving it, I can see the work.