"One cannot forget the Swedish 50 Kroner banknote produced from 1996-2003. I started both of my kids collecting world banknotes three decades ago. The bug stuck with my son, who collects all countries "dead" or current. My daughter collects only banknotes related to music, so the note below resides in her collection. There is more than just her image:

"Front: Musical notes from Vincenzo Bellini's opera "Norma, singer Jenny Lind, roses, Carl Fredrik Adelcranz's drawing of Stockholm's old opera house, microprinted quote from composer Arnold Schoenberg.

"Back: Silver harp and it's tonal range, excerpt from the score "Pictures of Percussion and Orchestra" .

"The watermark is also a Jenny Lind pattern."

Thanks - nice note! -Editor

"I'm consulting, gratis, for Royal Joh. Enschede in the Netherlands. My concept is to utilize banknote design, in limited editions, to help artists, athletes and charities raise funds. With my concept, banknotes could raise millions for charities for a low cost. I also imagine helping the collectors of commemorative banknotes at the same time.

"Taylor Swift helps animal shelters for cat & dog rescues. Here's a draft of a portrait we are working on for a commemorative banknote. We are still trying to get a license. It was done by banknote artist Tom Stebbins for my Banknotables collection. Hopefully Taylor or one of her Swifties gets to understand the concept."

Commemorative banknotes are a fine idea. There's a huge surplus of non-circulating collectible coins and medals - why not more banknotes? It's such a long, involved process to create official government banknotes that they often don't change for years or even decades. A commemorative banknote market would allow artisans in the industry to create nice work that would actually see the light of day. -Editor