RRR-, Alexander Jagiellonian, Half-penny, PEG error instead of REG

Extremely rare error in the legend PEG instead of REG; the letter P in the word "peg" identical to the letter P in the word "Polonie". A great rarity previously undescribed and unlisted at auction.
Errors on crown coins of Alexander Jagiellon are very rare and reach high prices, such as a piece with the LEXANDER error sold in 2020 https://onebid.pl/pl/monety-aleksander-jagiellonczyk-polgrosz-krakow-blad-lexander-bardzo-rzadki/675366 for 4255 PLN.