The most famous invention of Nikola is his card system, which is described in Encyclopedia of Card Tricks. Cards are not the only area Nikola excelled in.
From the inside cover:
Magical Masterpieces is no mere fanciful title. It is an apt
Born in Southampton, England. Stage name (from Guy Boothby's Dr Nikola) of Walter J. Obree Smith. Pro since 1901. Co-invented (with Roy Enoc) Milk Pitcher (by 1917), invented Nikola Card System by 1927 and Magic Welding in the early 1930s.
He performed the best Card Castle. After spreading the cards on the tray, he'd cover it with a silk....the silk would rise slowly and when at its zenith, Nikola would carefully remove the silk to reveal the card castle. As he walked away he would deliberately bump the tray and the castle would collapse, giving
evidence to its delicate construction.
