[NiceDocter]

Cobb lived a long life and was a prolific signer. Many of his checks are in his green pen and there’s a lot of those out there both certified and not. I would a steer clear of any Cobb letters …. even though there’s a bunch of real ones there’s also a ton of fakes done in the 1960s or 1970s. The signatures on those aren’t even close to standard but people have dropped big money on them in the past to their ultimate regret. Cobb signed checks in black from the 1930s are also available but not as plentiful as the green ink ones from the 1950s. Good luck with your search!