Although there were $100 National Bank Note. A blue seal is more common but a red seal is really valuable. You are talking anywhere from a couple of thousands to WHEEEE Doggies!
BUT if you had ten $10 bills from 1913 and gave those to him they would be worth a couple of hundred dollars each so over $2000 in today's money. More if they were in good condition.
Yeah, it sounds like the $10x10 bills from 1913 wouldn’t be the ones you’d want to spend at Starbucks. I remember the silver certificates but I have no clue if I’ve ever seen a red seal. I doubt I have.