8. Show one stamp in each of the following classifications. Explain the purpose of each: regular postage, commemorative, semipostal, airmail, postage due, envelope, special delivery, precancel, revenue, postage meter labels, and air letter sheets.
REGULAR POSTAGE, COMMEMORATIVE, AIRMAIL, POSTAGE DUE, AND ENVELOPE:
![BAHAMAS, 1977](/images/jba/jba074.gif)
BAHAMAS, 1977
Commemorative for the 6th Caribbean Scout Jamboree. Design error: misspelling of "Carribean"
![COLOMBIA, 1962](/images/jba/jba062.gif)
COLOMBIA, 1962
Airmail essay for unissued value.
![SWITZERLAND, 1969](/images/jba/jba061.gif)
SWITZERLAND, 1969
Postage due. Circle T overprint indicates the due was paid.
![AUSTRALIA, 1982](/images/jba/jba063.jpg)
AUSTRALIA, 1982
Pre-stamped envelope commercially used.
![NETHERLANDS, 1937](/images/jba/jba056.jpg)
NETHERLANDS, 1937
The 1½d King George VI regular postage issue of Great Britain is shown since there are no regular postage Scout issues. Shown is an incoming envelope to the V World Scout Jamboree with a 10 cent postage due stamp being tied by the special cancel for the Jamboree on August 8, 1937 to show the due being paid.
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