Congratulations cygan
The Zug note is one of my favourite designs so far. That and the Northern Cardinals.
The 50mbtc Europa was a very early in house Polymer note. It was made in 2017 just after we managed to reverse engineer the 0.1 BTC notes.
And the bottom note is made on our STC paper
thanks
is there an option to get a polymerbit hologram with priv/public key in addition to the two notes?
As in retro fitted?
yes
i bought the 3 notes and 2 of them have no hologram. now i want to upgrade them with a hologram (public + private key)
The 50mbtc was made before we ever generated keys. And mystery 1 never had keys because it was simply a showcase of our new security features.
I think it is possible to retrofit keys in but the labour would be quite substantial. I can give you older holograms but our new series is never given out without it being already placed on a note.
