Per USPS, it is legal to postmark a foreign stamp, as long as you also postmark an American one, in the same stroke.
The 3 cents STAR stamp is only marginally, and abstractly related to the religious icon.
Who lives among stars, if anybody?...
Yes, it's a stretch - that's why I don't call this a FIP CfM-compliant maximum card.
But, hey! - it's still interesting, and unique in the world! :)
That MPP (Mailer's Postmark Permit) postmark from Sterling, VA 20165 is mine, and only mine, with #67.
"The expression "XPTO" is an old abbreviation of the word "Χριστός", written "Christós" (Christ, in Greek).
The letters X (chi), ρ (rho), τ (tau) and ό (omicron) were selected and capitalized (except the "X") to form the abbreviation. Since the selected letters are written the same way in the latin alphabet this abbreviation is commonly spelled "xpto", ex-pee-tee-o.
The expression XPTO is normally used to describe something with very good qualities (e.g.: I own an XPTO car)."
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