Editing Christmas seal (section)

==Usage==

Beginning in 1907 when Christmas seals were first issued the incident of seals used in place of postage stamps became a common problem. Subsequently, by 1911 the U.S. Post Office adopted a policy that prohibited the placement of Christmas Seals on the same side of a postcard or envelope as the address. By 1930 the problem became less prevalent.<ref>[[#linn's|Hotchner, 2016: Linn's Stamp News]], Nov 16, 2016 issue</ref>

Before 1930 nearly all Christmas Seals found on U.S. mail were used on Christmas greetings postcards, as there were no commercial Christmas Cards with envelopes and postage for postcards was only a penny. Today postcards with Christmas seals tied on with a postmark with the same year date as the Christmas seal for that year are not common and often scarce, and in some instances rare.<ref>[[#denune|Denune, 2023, comprehensive catalogue]]</ref>
{| style="margin:auto"
| [[File:1910 Postcard with Christmas Seal.jpg|thumb|upright=1.4|Postcard with United States postage and Christmas Seal,  postmarked December 21, 1910]]
| [[file:Denmark Christmas Seal on Postcard, 1913.jpg|thumb|upright=1.4|Postcard with Danish postage and Christmas seal, postmarked December 23, 1913]]
|}

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