I've had my 15-2 for over thirty years. It's digested several thousands of assorted rounds and nothing has broken or worn-out. It's still my most consistently accurate .357 revolver.
FYI, the "VH" describes the barrel shroud configuration it was shipped with. It stands for "Vent Heavy". There is usually a numeral for nominal bbl length there too (2,4,6,8,10). Blued models (with the exception of the M-14/15 .357s) generally use the caliber as model number, with SS models adding a "7".
The barrel markings are the quickest way to determine the approximate time frame when your revolver was produced. From 1968 to 1991 the firm was called the "Dan Wesson Arms". The company was restructured in 1991 and revolvers made after January 4, 1991 were marked "Wesson Firearms Co., Inc.". The original company went bankrupt in 1995. In 1996 its assets were acquired by the "New York International Corp." First full production of new models was in 1997. these so-called "New Generation" models were laser marked on the frame with "NYI" in an oval above "Dan Wesson Firearms" with the next line "Norwich, New York, USA". The marque is now owned by CZ-Uhersky Brod.