Reading news is not a ' fashion' - it should be approached professionally. To cite a small example, the two microphones used by the newscasters have different audio levels. OK, we viewers give you three months to perfect your act. So coins or notes made by genuine die or blocks are imaculate in all respects. As such this die and block making is very expensive if genuinely done.
Coin undergoes a weight check too.
All these are done as any coin is a standard, so a substandard coin is not passed to the public. Same is the case for currency notes. BB's 13 January press release regarding 5-taka coin appeared strange to me. Text appeared in all other national daily had room for ambiguity. Because it said BB got some coin from Canada and Slovakia in 1994 and 1996.