Australia 1950/1985 - オーストラリア商業カバー（1950年代〜1980年代）— DHSS 航空便およびスローガン印の消印

Australia Commercial Covers (1950s-1980s) – DHSS Airmail & Slogan Cancels

Here is an analysis and valuation of the postal covers provided in the images.
These items comprise two distinct categories of modern Australian postal history: standard domestic covers addressed to a Dr. Schneider in Adelaide, and commercial international airmail covers sent from Australia to the UK Department of Health and Social Security (DHSS) using the official "CF (N) 321" pre-printed envelopes.
Because these feature common definitive or commemorative stamps from the mid-20th century to the early 1980s, their market value resides primarily in their interest to collectors of postal history, slogan cancellations, or specific commercial mail routes. Individually, they are quite common and carry minimal retail value.

1. The "Dr. Schneider" Domestic Covers (1950s–1960s)
• Lot 8 AUS 114 front.jpg: Features a red 3½d King George VI stamp. Postmarked from South Australia.
• Lot 8 AUS 117 front.jpg: Features a green 1½d Queen Elizabeth II stamp.
• Lot 8 AUS 115 front.jpg: Features a blue 5d Queen Elizabeth II stamp with an Adelaide machine slogan cancellation: "EXPORT IS YOUR BUSINESS / EXPORT WEEK 17TH-23RD OCT." dated 11 Oct 1960.
o (Slightly elevated due to the clear, complete topical slogan cancel).

2. The DHSS Overseas Branch "CF (N) 321" Airmail Covers (1979–1983)
These are standard commercial airmail covers sent to Newcastle upon Tyne, England. They feature the pre-printed "ADP" (Automatic Data Processing) box. While interesting as an example of international bureaucratic mail, the stamps used are highly common.
• Lot 8 AUS 116 front.jpg: 1979 usage with a 55c Christmas stamp (Madonna & Child). Postmark mostly faint.
• Lot 8 AUS 119 front.jpg: 1979 usage with a 55c Christmas stamp, featuring an Adelaide machine slogan cancel: "PLEASE POST CHRISTMAS MAIL THIS WEEK".
• Lot 8 AUS 111 front.jpg: 1981 usage with a 60c Sabot Sailing stamp. Clayton South, Victoria machine cancel.
• Lot 8 AUS 112 front.jpg: 1981 usage with a 60c Christmas stamp (Australian Carol). Clayton South machine cancel.
• Lot 8 AUS 113 front.jpg: 1981 usage with a 60c CHOGM (Commonwealth Heads of Government Meeting) stamp. Canberra circular date stamp.
• Lot 8 AUS 118 front.jpg: 1981 usage with a 60c Nomad Aircraft stamp. Darlinghurst, NSW circular postmark.
• Lot 8 AUS 120 front.jpg: 1983 usage with a 75c "Lady Don" Manual Fire Engine stamp. Liverpool, NSW circular postmark. Note: This cover is missing the printed "ADP" text inside the box, which is a minor commercial printing variety.

Philatelic Analysis
• Lot 8 AUS 102 front.jpg
o Description: Commercial white envelope sent via Air Mail to England. Features a 1982 75c Rose "Satellite" stamp postmarked at Gold Coast Mail Centre, QLD (30 Jul 1982).
o Value Factors: Very common commercial usage; minimal postal history premium.
• Lot 8 AUS 103 front.jpg
o Description: Brown "ADP" utility envelope (Form CF (N) 321) sent to Newcastle upon Tyne, England. Features a 1981 60c Christmas stamp postmarked at Blackburn, VIC (17 Nov 1981) with a "Come to Gippslands" slogan cancellation.
o Value Factors: Standard commercial computer-batch mailer. Slogan cancel adds minor regional interest.
• Lot 8 AUS 104 front.jpg
o Description: Brown "ADP" utility envelope sent to England. Features a 1981 60c Child Safety stamp with a double strike postmark from Gold Coast Mail Centre, QLD (13 Nov 1981).
o Value Factors: Common commercial usage; the neat double postmark strike is a minor curiosity but doesn't highly inflate value.
• Lot 8 AUS 105 front.jpg
o Description: Red and blue bordered Air Mail envelope to England. Features a 1982 75c Rose "Satellite" stamp postmarked at Perth, WA (9 Jul 1982) with a "Save on Postage..." slogan cancel.
o Value Factors: Slightly rough condition on the right-hand edge; standard commercial value.
• Lot 8 AUS 107 front.jpg
o Description: Brown "ADP" utility envelope sent to England. Features a 1981 60c Christmas stamp postmarked at Bundaberg, QLD (12 Nov 1981).
o Value Factors: Standard commercial usage with regional Queensland postmark.
• Lot 8 AUS 108 front.jpg
o Description: Brown "ADP" utility envelope sent to England. Features a 1979 55c Christmas stamp postmarked at Dee Why, NSW (1979) with a "Please Post Christmas Mail This Week" slogan cancel.
o Value Factors: The earliest of the ADP series covers shown here; classic holiday-period slogan cancel.
• Lot 8 AUS 109 front.jpg
o Description: Brown "ADP" utility envelope sent to England. Features a 1983 75c Merryweather Fire Engine stamp postmarked at Brisbane Adelaide St, QLD (16 Feb 1983) featuring a "Give Blood" pictorial slogan cancel.
o Value Factors: The pictorial "Give Blood" cancellation adds minor topical interest to cancellation collectors.
• Lot 8 AUS 110 front.jpg
o Description: Brown "ADP" utility envelope sent to England. Features a 1981 60c Nomad Airplane stamp postmarked at Mail Centre Gold Coast, QLD (13 Feb 1981).
o Value Factors: Popular "Nomad 1975" aviation stamp theme slightly elevates appeal to thematic collectors.
• Lot 8 AUS 101 front.jpg
o Description: Vintage commercial envelope addressed to Dr. Michael Schneider in Adelaide. Features a King George VI $3½d blue stamp, cleanly tied with a "Broken Hill, N.S.W. Aust." circular date stamp (24 Sep 1951) and a "Please Post Early Before Lunch..." slogan cancel.
o Value Factors: Clean 1950s commercial cover from a historic mining town (Broken Hill) to a prominent local figure. Excellent condition and clear strikes.
• Lot 8 AUS 106 front.jpg
o Description: Qantas Empire Airways Official First Scheduled Jet Flight Cover (Boeing 707). Route: Sydney–Manila–Hong Kong–Tokyo. Features a $1s 6d Christmas Bells stamp tied with a special inauguration "Qantas Boeing Jet Service / Sydney, Aust." circular postmark (14 Nov 1961).
o Value Factors: Official aerophilately souvenir cover. Highly collectible aviation theme, attractive cachet artwork, and pristine presentation.

Look carefully at the images to form an opinion
Lot 8 AUS 101-160