I am looking for info & pricing on a model of 1911 u.s.army colt 45 that was used by an officer in ww1 ?

It was used by an officer & was present @ Belleau Woods ,Meuse Argon & the Arden.the gun has most likely not been shot more then 10 times if at all. # 579** ser no. colt pt.fa mfg co.hartford ct.I think it was made in 1916.