Any witness in a proceeding under articles 1 to 7 of this title, in any court of record of this state wherein the value of real property is involved, may state the consideration involved in any recorded transfer of property, otherwise material and relevant, which was examined and utilized by him in arriving at his opinion, if he has personally examined the record and communicated directly and verified the amount of such consideration with either the buyer or seller. Any such testimony shall be admissible as evidence of such consideration and shall remain subject to rebuttal as to the time and actual consideration involved and subject to objections as to its relevancy and materiality.
C.R.S. § 38-1-118