AirmailStampGuide

Airmail Stamp Guide

Historical reference for US airmail stamps (C1–C76), identification methods, perforation guide, and value factors.

US Airmail Stamp Catalog (30 stamps)

C1(1918)

$100-$500 (regular), $150,000+ (inverted)

24c Carmine Rose & Blue, Jenny (Inverted Jenny error famous)

C2(1918)

$15-$75

16c Green, Biplane

C3(1918)

$5-$30

6c Orange, Biplane

C4(1919)

$40-$200

24c Carmine & Blue, Jenny

C5(1919)

$10-$50

16c Green, Biplane

C6(1919)

$3-$20

6c Orange, Biplane

C7(1923)

$20-$100

24c Carmine, DeHavilland Biplane

C8(1923)

$10-$50

16c Green, DeHavilland Biplane

C9(1923)

$2-$15

6c Orange, DeHavilland Biplane

C10(1926)

$5-$40

10c Dark Blue, Beacon on Rocky Mountains

C11(1927)

$10-$60

20c Yellow Green, Lindbergh Plane

C12(1928)

$2-$15

5c Carmine Rose, Beacon Airplane

C18(1930)

$50-$300

65c Zeppelin over Atlantic

C19(1933)

$30-$200

50c Green, Graf Zeppelin

C25(1941)

$5-$30

30c Transport Plane

C31(1941)

$1-$5

6c Transport

C32(1941)

$1-$5

8c Transport

C33(1941)

$2-$10

10c Transport

C34(1941)

$2-$12

15c Transport

C35(1941)

$3-$20

20c Transport

C36(1941)

$3-$25

30c Transport

C50(1958)

$0.50-$3

7c Jet Airliner

C55(1960)

$0.25-$2

5c Airliner

C60(1961)

$0.25-$2

8c Jet

C64(1962)

$0.50-$5

5c Project Mercury

C66(1963)

$0.25-$1.50

8c Airmail

C68(1963)

$0.20-$1

5c Airmail

C70(1964)

$0.25-$1.50

8c Jet over Mountains

C71(1965)

$0.50-$3

25c Airmail

C76(1971)

$0.20-$1

10c Airmail Decal

Identification: Printing Method

●Run fingertip lightly over surface — ink feels raised
●Fine parallel lines visible under 10x magnification
●Sharper detail, especially in portraits and lettering
●Typically used for early US airmail stamps (C1–C45)
●Plate numbers may appear in selvage

Perforation Counting Guide

Perforations are measured by counting the number of teeth (or holes) per 2cm along one edge.

Perf 10

Common on early US issues (1847-1890s)

Perf 11

Standard for many US commemoratives

Perf 12

Common on US definitive issues

Perf 10 x 12

Compound perforation (differs by edge)

Perf 11 x 10.5

Many US airmail stamps

Imperforate

No perforations; cut with scissors (rare)

Use a perforation gauge (perf gauge) for accurate measurement. A Stanley Gibbons or Scott gauge is standard.

Value Factors

Centering

Design equidistant from all edges. Perfect 50/50 is ideal. Off-center stamps lose significant value.

Kumpul dan nilai setem mel udara. Ketahui tentang isu mel udara, kadar pos dan siri reka bentuk khas mel udara.

Key Features

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Pangkalan data mel udara

✓

Panduan siri

✓

Maklumat jarang berlaku

✓

Katalog nilai

Cara Mengumpul Setem Mel Udara

Kenalpasti Mel Udara

Belajar mengenali tanda dan reka bentuk mel udara

Siri Penyelidikan

Cari penyenaraian isu mel udara yang komprehensif mengikut negara

Semak Jarang

Kenal pasti mel udara yang terhad

Bina Koleksi

Dapatkan mel udara mengikut negara, era atau tema

Use Cases

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Pengumpulan mel udara

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Pengumpulan khusus

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Sejarah pos

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Portfolio pelaburan

Frequently Asked Questions

Mengapa setem mel udara istimewa?

Mel udara adalah penting dari segi sejarah, selalunya terhad, dan mempunyai pengikut pengumpul yang berdedikasi.

Adakah setem mel udara lebih berharga?

Selalunya ya. Mel udara biasanya berharga 2-5x lebih tinggi daripada isu biasa dari era yang sama.

Bagaimanakah saya mengenal pasti setem mel udara?

Cari "mel udara," "par avion," atau reka bentuk mel udara khas seperti pesawat atau glob.

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AirmailStampGuide