This is a First Day Cover that has been hand signed by the great, Johnny Vander Meer. The cachet has been authenticated and slabbed by PSA/DNA. The serial number is verifiable online using PSA/DNA #84092184. The cover comes encapsulated in a tamper-proof cover. 100% authentic signature from Cincinnati Reds legend, Johnny Vander Meer. A great gift idea for a Cincinnati Reds or MLB collector.