http://www.stampcollectioninfo.com/covers-fdc/
For FDC (first day covers) and collection and storage, which offers the best protection of the envelope or sticker?
For FDC (envelopes the first day) the collection and storage, which offers the best protection of the crystal envelope or sleeve vinyl? I'm interested in storage long term.
I think the question you really should consider is: self-adhesive Mylar Vs Vs vellum vinyl does not seem a viable option.
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 SCOTT 1716 UNITED STATES FIRST DAY COVER $2.99 Time Remaining: 30m Buy It Now for only: $2.99 |
 1981 First Day Cover 18c Stamp Transportation Series $3.67 Time Remaining: 30m Buy It Now for only: $3.67 |
 3204 Hand Painted HP Collins First Day Cover 3204DD0 DSS $12.95 Time Remaining: 30m Buy It Now for only: $12.95 |
 3025 3026 Hand Painted HP Collins First Day Cover 3025FL0 DSS $12.95 Time Remaining: 30m Buy It Now for only: $12.95 |
 3002 Hand Painted HP Collins First Day Cover 3002YA0 DSS $12.95 Time Remaining: 31m Buy It Now for only: $12.95 |
 3002 Hand Painted HP Collins First Day Cover 3002XM0 DSS $12.95 Time Remaining: 31m Buy It Now for only: $12.95 |
 SCOTT2043 UNITED STATES FIRST DAY COVER $2.50 Time Remaining: 31m Buy It Now for only: $2.50 |
 3001 Hand Painted HP Collins First Day Cover 3001NA0 DSS $12.95 Time Remaining: 31m Buy It Now for only: $12.95 |
 2996 2997 Hand Painted HP Collins First Day Cover 2996FL0 DSS $12.95 Time Remaining: 31m Buy It Now for only: $12.95 |
 2995 Hand Painted HP Collins First Day Cover 2995FL0 DSS $12.95 Time Remaining: 31m Buy It Now for only: $12.95 |
 2993 2994 Hand Painted HP Collins First Day Cover 2993FL0 DSS $12.95 Time Remaining: 31m Buy It Now for only: $12.95 |
 2977 2979 Hand Painted HP Collins First Day Cover 2977EX0 DSS $18.00 Time Remaining: 31m Buy It Now for only: $18.00 |
 SCOTT 2039 UNITED STATES FIRST DAY COVER $2.50 Time Remaining: 31m Buy It Now for only: $2.50 |
 2976 2978 Hand Painted HP Collins First Day Cover 2976EX0 DSS $18.00 Time Remaining: 31m Buy It Now for only: $18.00 |
 2974 Hand Painted HP Collins First Day Cover 2974UN0 DSS $12.95 Time Remaining: 32m Buy It Now for only: $12.95 |
 2968 Hand Painted HP Collins First Day Cover 2968TX0 DSS $8.95 Time Remaining: 32m Buy It Now for only: $8.95 |
 SCOTT 2045 UNITED STATES FIRST DAY COVER $5.99 Time Remaining: 33m Buy It Now for only: $5.99 |
 1981 First Day Cover Stamp Domestic Postage Rate C $3.67 Time Remaining: 34m Buy It Now for only: $3.67 |
 SCOTT 1706 09 UNITED STATES FIRST DAY COVER $3.95 Time Remaining: 34m Buy It Now for only: $3.95 |
 1981 First Day Cover Stamp Domestic Postage Rate C Coil $3.67 Time Remaining: 35m Buy It Now for only: $3.67 |
 SCOTT 1480 83 UNITED STATES FIRST DAY COVER $4.95 Time Remaining: 36m Buy It Now for only: $4.95 |
 US First Day Covers Special Covers 97 Postal Commemorative Society 1989 1992 $43.00 Time Remaining: 37m |
 SCOTT 1801 UNITED STATES FIRST DAY COVER WILL ROGERS $3.50 Time Remaining: 39m Buy It Now for only: $3.50 |
 US Stamps First Day Cover 1928 Scott E11 + 499 $18.00 Time Remaining: 39m Buy It Now for only: $18.00 |
 US Stamps First Day Cover 1929 Scott 681 $18.00 Time Remaining: 39m Buy It Now for only: $18.00 |
 US Stamps First Day Cover 1936 C19 $11.00 Time Remaining: 39m Buy It Now for only: $11.00 |
 717 25 ARBOR DAY FIRST DAY COVER CACHET BN674 $35.00 Time Remaining: 41m Buy It Now for only: $35.00 |
 717 NIP HINES FIRST DAY COVER HAN PAINTED CACHET BN675 $100.00 Time Remaining: 41m Buy It Now for only: $100.00 |
 SCOTT 1801 UNITED STATES FIRST DAY COVER WILL ROGERS $4.95 Time Remaining: 41m Buy It Now for only: $4.95 |
 717 NIP NEBRASKA CITY NEBR FIRST DAY COVER CACHET BN676 $125.00 Time Remaining: 41m Buy It Now for only: $125.00 |
 717 AO FIRST DAY COVER KRIBBS CACHET BN677 $40.00 Time Remaining: 41m Buy It Now for only: $40.00 |
 SCOTT 1801 UNITED STATES FIRST DAY COVER WILL ROGERS $2.95 Time Remaining: 42m Buy It Now for only: $2.95 |
 Lot of 6 New York Worlds Fair Scott 853 covers FDC 6 different cachets $39.30 (2 Bids) Time Remaining: 43m |
 Scott 2841 RARE Apollo Moon Landing Souvenir Print First Day Cover MINT $34.14 Time Remaining: 43m |
 Scott 803 to 834 inclusive first day covers prexies 1938 ioor cachet $254.79 Time Remaining: 43m |
 Beautiful collection of first day covers in album over 100 individual covers $38.63 Time Remaining: 43m |
 Creatures of the Sea First Day Cover Joint Issued 10 3 90 in Baltimore Moscow $4.95 Time Remaining: 44m |
 US Stamps First Day Cover 1939 Golden Gate Intl $11.00 Time Remaining: 44m Buy It Now for only: $11.00 |
 US Stamps First Day Cover 1944 Scott E17 $13.00 Time Remaining: 44m Buy It Now for only: $13.00 |
 1981 First Day Cover 18c Stamp James Hoban $3.67 Time Remaining: 46m Buy It Now for only: $3.67 |
 First Day Covers for Complete Set of Famous Americans with Cachets 1940 $86.99 Time Remaining: 48m |
 US Stamps First Day Cover 1945 Franklin D Roosevelt $11.00 Time Remaining: 49m Buy It Now for only: $11.00 |
 US Stamps First Day Cover 1981 Black Heritage $13.00 Time Remaining: 49m Buy It Now for only: $13.00 |
 1981 First Day Cover 18c 20c Stamp Capitol Building $3.67 Time Remaining: 53m Buy It Now for only: $3.67 |
 US Stamps First Day Cover 1981 Migratory Birds $28.00 Time Remaining: 54m Buy It Now for only: $28.00 |
 1436 Colorano Emily Dickinson American Poet Cover Early Colorano FDC CC $12.99 Time Remaining: 56m |
 1431 Colorano Antarctic Treaty American Flag Cover Early Colorano FDC CC $19.99 Time Remaining: 56m |
 3642 45 37c Antique Toys Block of 4 FDC Cover Craft Cachet $0.62 Time Remaining: 56m |
 2256 84c Wheel Chair Coil FDC Cover Craft Cachet $0.50 Time Remaining: 56m |
 1474 Stamp Collecting Colorano Silk cachet First Day cover Early Colorano CC $16.99 Time Remaining: 56m |