| Lot Number: 596 | |
 | Date: 1931, Aug 1 Est. price: £12.00 Category: South West Africa Description: SWAA, Provisional Internal Air Services, F/F Windhoek to Otjiwarongo, bs 1/8, plain cover franked 4d, Airpost/Windhoek/Lugpos cachet., blue/black "Per Lugpos" etiquette. |
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| Lot Number: 597 | |
 | Date: 1931, Aug 10 Est. price: £12.00 Category: South West Africa Description: SWA Airways first provisional internal service, Windhoek to Walvis Bay, bs 11/8 plain cover, franked 4d canc Windhoek cds and special Lugpos Airmail cachet. Francis Field authentication hs. |
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| Lot Number: 598 | |
 | Date: 1931, Dec 19 Est. price: £15.00 Category: South West Africa Description: F/F Windhoek to Kimberley 20/12, (SWA feeder link) then on to Cape Town, having connected with the IAW London-Cape Town Christmas experimental flight, reg cover, South West African/Imperial Airways. Non invasive ironed vertical crease. Image. |
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| Lot Number: 599 | |
 | Date: 1931, Dec 19 Est. price: £10.00 Category: South West Africa Description: SWAA, F/F Windhoek to Victoria West, bs 21/12, J Robertson cover franked 4d, canc double circle Windhoek cds, blue/black airmail etiquette, blue/black airmail etiquette. Francis Field authentication hs verso. |
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| Lot Number: 600 | |
 | Date: 1932, Jan 26 Est. price: £15.00 Category: South West Africa Description: Windhoek to Keetmanshoop 27/1, first regular SWA Airways feeder service to connect with IAW Cape Town to Croydon service, Springbok cover franked 4d, small metal die 'Air Mail' ds applied at Windhoek. |
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| Lot Number: 601 | |
 | Date: 1935, Mar 11 Est. price: £10.00 Category: South West Africa Description: First carriage of internal mails by South African Airways from Windhoek to Marienthal, bs 13/3, imprint etiquette airmail cover franked 1 1/2d canc small metal die 'Windhoek/Lugpos ds. Uncommon, ref Stern 98. |
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| Lot Number: 602 | |
 | Date: 1939, Aug 22 Est. price: £18.00 Category: South West Africa Description: New link with Angola, Cape Town-Windhoek-Loanda Direct Service, F/F Windhoek to Lobito, bs 22/8, plain cover franked 1 1/2d, violet straight line 'First Flight - West Coast' cachet. Image. |
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