“58. The materials on record, as a whole, also do not, in our comprehension, present a backdrop, in which, in normal circumstances, the testator would have preferred the appellant to be the legatee of his property as set out in the Will, Ex. A-1, by denying his wife, children and grand children who were alive and with whom he did share a very warm affectionate and cordial relationship. Viewed in this context, the bequest is exfacie unnatural, unfair and improbable thus reflecting on the testator’s cognizant, free, objective and discerning state of mind at the time of the alleged dispensation. The suspicious circumstances attendant on the disposition, in our opinion, do militatively impact upon the inalienable imperatives of solemnity and authenticity of any bequest to be effected by a testamentary instrument.”