Rude gestures are uncommon connected postage stamps, but Ukraine's champion known stamp has one. It shows a worker raising the mediate digit to a Russian warship successful notation to a stand-off astatine Snake Island connected time 1 of the full-scale penetration astir 3 years ago.
The Russians demanded surrender but the Ukrainians refused, utilizing unprintable language.
The warship successful question, the cruiser Moskva, was sunk by the Ukrainians 2 days aft the stamp was issued, and it sold retired wrong a week of going connected sale.
Such is the value of the stamp that immoderate was near was given to authorities delegations representing Ukraine connected the satellite stage.
Ihor Smilyansky, the caput of Ukraine's postal institution Ukrposhta, acknowledges it was a risqué measurement to take.
"It was my decision. I said - I don't attraction immoderate everyone other thinks. I conscionable judge it's the close happening to do," helium told the BBC. "I cognize it's breaking each the philatelic [study of stamps] rules and each the rules. But we're astir breaking the rules."
Ukrposhta often tests its designs connected the public, and the results of specified online polls thin to beryllium precise governmental too.
That was however Ukraine's best-selling stamp came into being, showing a Ukrainian tractor towing a captured Russian vessel and featuring the fashionable wartime greeting: "Good evening, we're from Ukraine."
Ukrposhta has sold astir 8 cardinal specified stamps.
Stamps featuring Ukraine's celebrated mine-sniffing canine Patron earned Ukrposhta astir $500,000 (£400,000): 80% of the wealth was spent connected mine-clearing equipment, and the remainder connected carnal shelters.
Another stamp of a mural near by renowned graffiti creator Banksy connected a gathering devastated by shelling extracurricular Kyiv, helped money 10 weaponry shelters. This stamp features different fashionable but unprintable Ukrainian slogan - this clip directed against Vladimir Putin.
Ihor Smilyansky says a dose of humour is added to Ukrposhta's stamps to support Ukrainian morale during the warfare with Russia.
"Humour has go a warring unit for Ukrainians successful this war," helium tells the BBC. "Even successful the astir hard circumstances you person to instrumentality it with a consciousness of humour. And that's what our stamps are sometimes about."
Oscar Young from UK-based stamp dealers and auctioneers Stanley Gibbons says Ukraine's attack to stamps by focusing them connected the warfare is highly unusual.
"Generally stamps are creator and polite, but to spell retired your mode and beryllium rather rude, placing profanity and being precise gesturous connected stamps - that is rather unsocial to these peculiar issues," helium tells the BBC.
He says the frank representation utilized connected the warship stamp is what made the stamp truthful celebrated and caused specified a disturbance erstwhile it was issued.
The distinctive quality of Ukrainian stamps has earned them popularity with collectors worldwide.
Laura Bullivant from Gloucester, successful the UK, believes that different stamps look bland by comparison.
"I deliberation they're similar the Ukrainian thought process, they're conscionable strong, and they're conscionable not bowing down to whatever's coming into their country," she says.
"At a clip of immense interest and awfulness, they are bringing thing to the crippled that nary different state could."