water color set of blue postal stickers. blank one and with text signs: `air mail`, `par avion`.

air airmail airplane art avion background badge banner blank blue button card certificate clip correspondence cute design doodle drawn elements emblem envelope etiquette font graphic greeting hand icon ink international isolated label layout letter mail mark office pack package painting paper par pastel pattern plane post postage postal postcrossing postmark retro service set shipping sketchy stamp sticker tag tape text travel washi watercolor watercolour white