King George’s Invisible Signature
In this episode of SPY's Collection Highlights — H. Keith Melton showcases rare invisible signatures of King George and Queen Mary.
Limited Tickets Available
General Admission tickets are sold out for the day and limited in availability through the week.
Advance ticket purchase is recommended.
We do have tickets available for our special exhibition Camouflage: Designed to Deceive.
Resources
Spy from Home: How to Make Invisible Ink
Join an educator from the International Spy Museum to test a variety of invisible inks at home!
Invisible Ink Formulas
Explore a variety of invisible inks that you can use at home. Afterwards, try the secret message egg challenge!