Live Bidding Auction #79

1919, 4th Stanyslaviv issue (8th set), black surcharge ''hryven'' on Austrian Postage Due of 5k blue, stamp from position 4 of 25-stamp setting, used on registered pre-printed (banknotes order) local cover, tied by Stanyslaviv ''18.V.19'' date stamp, bearing appropriate registered label No.1057, no backstamp, reversal seals removed, still VF and extremely rare, only two other covers bearing this stamp are known (registered labels No. 1055 and 1056), expertized by J. Bulat, J. Baumgarten and others, C.v. $3,000 for used stamp off cover