Zeppelin Flight. 1925 (April 24-25), Airship (Z.R.3) Los Angeles Flight cover from Hamilton to Lakehurst, franked by Caravel 2½p apple green, machine ''16.APR.25'' cancellation, two different types of Bermuda confirmation markings, postmarked on arrival, mostly VF and very scarce, Sieger #20Q, Est. $150-$200 (Image)