6.9g
27mm
Every example of 503 Korea 5 fun that I have seen in catalogs or online show large characters for this year.
https://en.numista.com/catalogue/pieces21041.html
However, this coin, though being year 503, clearly has small characters like year 502 can have.
https://www.pcgs.com/valueview/5-fun-1892-1902/1893-502-5-fun-small-characters-obverse-bn/5456?sn=142971&h=pop
The catalog does not say small characters are a possibility for year 503.
https://www.ngccoin.com/price-guide/world/korea-5-fun-km-1107-502-505-cuid-1180705-duid-1451973
Some other examples of small characters:
https://coins.ha.com/itm/korea/korea-yi-hyong-1-fun-year-502-1893-small-characters-/a/441-51685.s
https://www.ebay.ca/itm/Rare-AU-53-PCGS-1893-Korea-Copper-5-Fun-Year-502-About-Uncirculated-566/223557334661?epid=102166512&hash=item340d0e3685:g:fAkAAOSwcfVc8833
Is this a rare variety?
Any help is much appreciated!