Hello. I recently buyed a Tokyo Spike. Its reference is 53NHS. Taking a look on the catalogues of the brand, I see that reference in Tokyo spikes from 2013, 2014 and 2015 catalogues. Catalogues from 2016 and 2017, named it as 53NHSZ, and specify a sub-zero cryo HT. Catalogues from 2018 to 2022 name the knife again as 53NHS, without "Z", though they specify the same heat treatment, with cryo. So, How can I know if the knife is having that HT? I mean. My reference is 53NHS. Is there a way to distinguish if it is from 2013-2015 or 2018-2022? Maybe trough the box, bar code, QR code... I add some pictures.
Thank you so much in advance.
https://ibb.co/R0C7MK2
https://ibb.co/YQjwVJm
https://ibb.co/V3PPfdn
Thank you so much in advance.
https://ibb.co/R0C7MK2
https://ibb.co/YQjwVJm
https://ibb.co/V3PPfdn