Do you know this ? I didn't know ! What a surprise !

Hi, there ! I'm ako.
How are you doing ?

Today I 've got a e-mail from one of my friends.
He told me about small letters on bills !
You know what ?

Very very small, oh, I can say "Tiny"?
Several tiny Japanese letters 'katakana'
are on a 1,000 yen bill, a 5,000 yen bill and 10,000 yen bill !!
They are [NI][HO][N].

I yelled, "Really ? Incredible !"
I didn't know that !!!
I am very surprised at this fact.

As soon as possible I took out these bills from my wallet,
I looked into the bills to find small katakanas !

He said that he saw this topic on TV program "Trivia no Izumi".
I didn't see that.
Oh, that's too bad !!!

I have already found "Ni""Ho""N" of katakana
on the both sides ??
(I mean, the surface and the back side ??)
of 1,000 yen bill.

And now, I have just found 5 katakanas on my 5000 bill.
One moreeeeeeeeee !!

What about 10,000 yen bill ?
I grinned.
I found 4,,,,,but still 4 !

Please find out and tell me where !

Ummmmm, I can't sleep tonight until I could find all the katakana on the bills !!

See you soon, I'll be back if I found them all.....