My friend gifted a supposedly Mahachanok 5 years ago from Excalibur, there was also a label that listed the name and date of said variety. Removed fruit first few years so didn’t think anything of it. Last year it fruited but fruit dropped. This year it has a lot of fruit but it’s a malikka, not a Mahachanok, I hope it’s as good as some say, because i sure do like eating Mahachanok.