But doing a grep of the Foil Price guide I only see "DCI"

but the problem is i can't assume its the FNM foil because of the following

livecd tmp # grep -i 'wall of roots' magic
Wall of Roots, 5.33, 2.02, 5.42, 8.75, 1.69, -0.00, 33

livecd tmp # grep -i 'counterspell' magic
Counterspell (7th), 5.52, 2.27, 5.76, 10.60, 1.04, 0.00, 17
Counterspell (DCI), 5.04, 1.88, 4.81, 7.25, 0.08, 0.00, 12
Counterspell (MM), 8.88, 1.38, 8.88, 10.26, 7.50, 0.00, 2

livecd tmp # grep -i 'tormod' magic
Tormod's Crypt, 3.97, 1.88, 4.04, 10.00, 0.60, 0.03, 29

I see no DCI for Wall of Roots, no Tormod's Crypt, yet i see DCI for Counterspell, but i can't/don't assume its the FNM foil.

See the following shows DCI, and if memory serves me some of these are FNM foils, but some may not be.

Silver Knight (DCI), 0.38, 0.00, 0.38, 0.38, 0.38, 0.00, 1
Skirk Marauder (DCI), 0.45, 0.00, 0.45, 0.45, 0.45, 0.00, 1
Skyknight Legionnaire (DCI), 0.17, 0.14, 0.17, 0.32, 0.03, 0.00, 2
Slice and Dice (DCI), 0.83, 0.11, 0.83, 0.94, 0.72, 0.00, 2
Smother (DCI), 1.08, 0.00, 1.08, 1.08, 1.08, 0.00, 1
Soltari Priest (DCI), 1.68, 0.50, 1.68, 2.33, 0.99, 0.06, 6
Sparksmith (DCI), 0.62, 0.42, 0.62, 1.25, 0.25, 0.00, 6

Just wanna be able to remove some confusion if possible.

Thanks