The Camillus with the short underline is generally considered to made from 1946-1950.
The Camillus with the long underline is gennerally accepted as being made 1960-1976.
I loves my #72's and have several. Right now, I'm looking for one with bone handles that's in good condition and that I can afford.
Here are a couple currently in my pile. As Dale (Orvet) often says, "Don't hang your hat on the tang stamp when dating a Camillus knife."
A new in box #72 1989 to when the company closed it's doors.
An excellent condition 100th Anniversary (I've been told) #72
A 1997 Yello-Jaket with a factory error main blade. '22LR6' is stamped on the pile side tang and 'Yello-Jaket' is etched on the mark side of the blade.
A 1992 Coca-Cola advertising #72
A Montgomery Wards Powr-Kraft 84-11 (#72) that now lives in Orvet's pile out in Oregon. Gone but not forgotten.
A #63 Ulster made Sears Craftsman. Same pattern as the #72. (not my picture)
Forged on the anvil of discipline.
The Few. The Proud.
This country has become more about sub-groups than about it's unity as a nation.
"The #72 pattern has got to be pretty close to the perfect knife."
--T.J. Murphy 2012