Hello! I recently picked up a few wedges for the man cave that I thought looked unique. I've recently been told they may be tour issue wedges. I'm looking for some more info/history on them.

The 54* has 2005 Prototype stamped on it. Was this a prototype head for a future retail model or prototype grind? The loft is definitely hand-stamped. Was this a hand ground wedge? "ATC" is stamped on the back of the hosel above the knurling.

The 60* looks to be a V grind. The stamping on the back doesn't look to be like any retail spin milled wedges. Was this a "special" tour head (if it is a tour head)? "ATC" is stamped on the back of the hosel above the knurling and "2" is stamped below the the knurling.

The 52* looks like a stock raw Spin Milled C-C but "6VX55" is stamped on the back of the hosel.

Any additional info is appreciated! Thanks!