What is a Cruiser Axe?

I've recently become more interested in axes and acquired a new cruiser axe.  This then raised the question of why it is referred to as a cruiser axe?

A cruiser is someone who estimates the potential lumber yield from the trees on a tract of land.  This gives the buyer of the timber an estimate of how much to bid on the standing timber.  Theiser would use a smaller axe which could be carried in the woods for days without difficulty.  The axes were used to mark certain trees or the edge of an area.  

From what I understand, the axes were only used until the 1950's.  At which time, trees were marked with cans of spray paint rather than slash marks from a cruiser axe.  After the switch to spray paint, cruiser axes were still used but not as much in the original manner.

A cruiser axe is generally a double bit axe with a head weight of 2.5 lbs and a handle length of 28".  I'm not aware of a company which currently produces cruiser axes.  However, older versions produced by Sager, Kelly, True Temper, Plumb, and others can be found on online auction sites like eBay.  A few examples can be found in this 1937 Warren Tool Catalog.

While I've not read the book, my understanding is the book titled 'Alaskan Adventure' by Jay Williams covers his experiences as a member of the U.S. Forest Service in Alaska and includes some details on the practices of timber cruisers in years past.