Counterfeit Counter Measures - Tilt to Change Images, Micro Dots, Micro Lines ... on a coin

MsMorrisine

This is on Japan's 500Y coin (~$5)


<==== Just a picture. Click on the link below to view the movie.
link to movie showing changing image on the coin


angled reeding



micro dots



micro lines

robertpr

<< <i><==== Just a picture. Click on the link below to view the movie.
link to movie showing changing image on the coin

>>



Man, in 2014, I never expect to see such poor quality in video clips posted online.

LanceNewmanOCC

.
so since you posted this info msmorr, what do you think about it?
.

MsMorrisine

<< <i>.
so since you posted this info msmorr, what do you think about it?
. >>





They will be good until the counterfeiters catch up

I found out the angled reeding is patented in the USA.

The changing image is also in use by Taiwan and does not appear to be patented.


I asked about curved reeding, but the guide seemed to think that was too far out there.


They have a 47 prefecture series going similar to our 50 states. Each is on a 500 yen coin($5).
The changing Image there is a small 47 one way and 60 another in a small center portion

ricko

Certainly a step in the right direction.... but adds cost to the coin, and U.S. coin cost is already high....Cheers, RickO

TwoKopeiki

Don't have to look far to see some cutting edge anti-counterfeit measures being implemented.

Each coin's "DNA" is recorded into a centralized database as part of production process at the mint:



<< <i>“It’s going to explode — it’s going to come fast,” Ho said. Once the system is implemented, an individual will be able to take a picture of a coin with a phone to determine whether it is genuine, Ho said, illustrating the process by pulling out a smart phone and snapping a picture. “A shopkeeper can use this.” >>



CoinWorld article from 2012

Royal Canadian Mint page