"Lady Katherine"
tattoo looks like V3729
V could be U or W
3 could be 2 or 5 or 8
7 is pretty definitely 7
2 could be 3 or 5 or 8
9 could be 7, 4, ...? Looks like a backwards P

Face - Star and Snip

Left Side

Right Side

Left View, Forelegs Markings
Left Fore Coronet

Right View, Forelegs Markings
Left Fore Coronet

Left View, Hindlegs Markings
Left Hind Pastern (outside) Coronet (inside)
Right Hind Pastern
Both have black "specks" in white.

Right View, Hindlegs Markings
Left Hind Pastern (outside) Coronet (inside)
Right Hind Pastern
Both have black "specks" in white.