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Mike Acs: fut-spasta_v_bw_o_n (ca. 1968, unnumbered press/poss. Martin Marietta Corp. photo)
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Mike Acs: a_v_bw_o_n (1959, plate no. 3112, Fig. 7 of 10th IAC Rosen & Schwenk presentation)
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Mike Acs: fut-lnr_v_bw_o_n (ca. 1960-63, unnumbered Northrop Corp. photo)
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Mike Acs: fut_v_bw_o_n (ca. 1958, original Convair-General Dynamics photo, no. 31975)
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Mike Acs: STSprog-fut_v_c_o_TPMBK (108-KSC-74PC-297)
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Mike Acs: a17_v_bw_o_n (ca. 1972, unnumbered NAR photo, 72-H-1479 & 72-HC-857 eq)
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Mike Acs: fut-lnr_v_bw_o_n (ca. 1962-64, LM&SC lunar logistics, habitat & LTV)
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Mike Acs: fut/Mars_v_c_o_EKC (ca. 1957-1961, verso hand-annotated C721)
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Mike Acs: a_v_bw_o_n (Dick Locher, ca. 1970)
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Mike Acs: fut-Mars_v_bw_o_n (Martin Co. photo & NASA-S-64-3916)
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Mike Acs: fut-Marsexp_v_c_o_TPMBK (ca. 1990, verso hand-annotated CN 4789-90)
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Mike Acs: ui_v_bw_o_n (ca. 1960 Ford Aeroneutronic Div. photo no. 6157)
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Mike Acs: a17_v_bw_o_n (S-72-55168)
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Mike Acs: 41B_r_c_o_FCAP (S84-27562, auto)
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Mike Acs: fut-Marsexp_v_c_o_TPMBK (ca. 1988-90, verso hand-annotated CN 5027-88)
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Mike Acs: fut-PARSECS_v_bw_o_n (ca. 1958-60 Boeing Airplane Co. photo, verso hand-annotated P21615)
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Mike Acs: a/VAB_v_bw_o_n (ETR64-324-014/9820-891)
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Mike Acs: fut-Marsexp_v_c_o_TPMBK (ca. 1988-90, verso hand-annotated CN 5357-90)
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Toby Cottrell: St Paul's Churchyard, London
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chyen01: R0051012
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Vicente Aguiló: EC-GLO_C172_LEAB_220221__VAL2050
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Mike Acs: a_v_c_o_AKP (S-63-11327, 63-Apollo-130 eq)
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jneydson: The mercies of the Lord are renewed upon me!
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jneydson: Lago da Barragem Pedra do Cavalo
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LabLive: East Coast Trail
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Leo in Canberra: Lakes and Farmland-8072135
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Iñigo Escalante: Pescante de Hermigua en la isla de La Gomera
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Leo in Canberra: Western Australian Salt Lake Patterns-8071936
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jneydson: Pôr do sol na Princesa do Sertão 🌵
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Mike Acs: gal_v_c_o_TPMBK (ca. 1987-89, unnumbered JPL-NASA photo)