I can only go by the power of elimination.
Definitely not: C, E, F, H, I, M, N, P, Q, R, S, T, U, X, Y, Z
So this leaves me: A, B, D, G, J, K, L, O, V, W
This may take a while
Hopefully not A, B or D
G is unlikely
K doesn't look like a Gangloff product to me
L doesn't look like a Gangloff building
O is too modern
Then let's start with V