vadodara a coin collector of godhra has spotted a typographical error on the packaging of a set of commemorative coins the collector dr nandan parikh has discovered not one but two errors on the case of a set of commemorative coins on shahid bhagat singh that were unveiled on the occasion of his birth centenary in 2007 the cover of the case on which the coin is mounted spells the occasion as janmashaati instead of janmashati in hindi but more is store on the case that writes the martyrs name as sagat singh instead of bhagat singh its for the first time that i have come across something like this such typographical errors on a collectors item coming from a mint that is supposed to be full proof are sad said parikh who had ordered the coins he said the coins were minted at alipore mint in kolkata the package is a set of two coins of rs 100 and rs 5 denomination and costs rs 1400 parikh has collected several such commemorative coins as a hobby