I own the pictured Mordecai Brown autograph, which I've owned (bought framed and matted as seen) for probably 15-20 years.
I am contemplating selling it at this time, and have a couple of questions:
1.) For vintage autographs such as this, which is the best choice for authentication? PSA/DNA vs SGC vs Spence?
2.) Have any similar cut sigs from Brown sold at all recently? I haven't been able to locate any similar items for sale.
3.) Is anyone here familiar enough with his signature to give me your educated opinion?