A bit of a mess here. William III first bust 1696 shilling with 9 over inverted 9 or 6 depending on how you want to phrase it. And based on the digit relief, possibly the last 6 was converted from a 5. Adjustment marks on both sides to get the weight right.
A slightly more modern issue. 1950/1 Sweden 2 Kronor. Also has a re-punched MM. As you can see, they tried some judicious die polishing to erase them with no success Type Standard circulation coin Years 1942-1950 Value 2 Kronor (2 SEK) Currency Krona (1873-date) Composition Silver (.400) Weight 14 g Diameter 31 mm Thickness 2.25 mm Shape Round Orientation Medal alignment ↑↑ Demonetized 06-30-2017 References KM# 815
