Vichy France or L'Etat Francais 1 Franc. Note the 'travail, families, patrie' slogan. Issued 1944, so probably only legal tender for a short while, yet likely used for a bit as it looked similar to a late 3rd or 4th Republic coin.
1917 250 Rubles. Perhaps a Provisional Government note. Note the uncrowned double eagle.
This video asks why Byzantine coins were so ugly compared to even a coin of Postumus (the areus is quite extraordinary), a regional or northwestern imperial claimant of the third century crisis. He argues that compared to this claimant, late and east Roman emperors were less individualised in their portraiture, while, say, an image of Christ on a coin of Justinian II or Basil II or the Blessed Virgin on a coin of Zoe and Theora, was executed with notable skill. The argument is for me a little weaker when a coin of Maurice Tiberius is shown. A functional low denomination nummis makes sense, but it's done with a lack of skill that wouldn't have been with even the most basic earlier coins. His rule was a time of extraordinary strain meaning the crude and minimal had to do.
1928 Jamaican one penny. It's interesting it isn't copper like the UK pennies or equivalent of Dominions like Canada.
1956 Vatican City 100 Lira of Pope Pius XII. It's basically a redesign of Italy's 100 Lira. San Marino would've had similar and has similar with Euro coins.
