I'm thinking you mean the tip to tip spread is 10 inches? Unless somehow the picture isn't scaled right, or the persone holding the horns is a midget.......I can't see how that's 10" for spread. The 10" tine you speak of is much shorter than the inside spread of the main beams.
The averageguy fist is around 4" across the knuckles. Knowing this, I'd say the deer isbetween 100-105 inches.
I figured the following measurements and came up with 104".........
MB - 19 19
H1 - 4 4
H2 - 3.53.5
H3 -3 3
H4 - 2.75 2.75
G1 - 22.5
G2 - 910
IS - 16"
Here is a 98" 6 pointer as reference.........