How far do we go with the term “overprinted” in manufacturing techniques?
These notes got stamps added:
Slovakia provisional issues 1993 https://en.numista.com/catalogue/index.php?e=slovaquie&r=provisional&ct=banknote&im1=&im2=&tbb=y&tbc=y&tbl=y&tbt=y&cat=y&ru=&ca=931&no=&v=&i=&b=&ib=&u=&a=&dg=&m=&f=&t=&t2=&mt=&g=&se=&d=&c=&wi=&sw=)
Instead of adding another techniques, I would consider it “overprinted” if only with a stamp instead of with inkt directly on the notes. Please vote up or down ;-)