State of Texas, ohne Datum, ca. 1967, Specimen eines Zertifikats für Common Shares á US-$ 1, o. Nr., 20,3 x 30,3 cm, grün, schwarz, weiß, Perforation, Bohrplattform in Unterdruck.
State of Texas, no date, ca. 1967, Specimen of a Certificate for Common Shares á US-$ 1, o. Nr., 20.3 x 30.3 cm, green, black, white, perforation, oil drilling platform in underprint.