Opinions on Walter Johnson Single Signed value

[rholmes]

Anyone want to take an educated guess where this Walter Johnson ball would land if auctioned via REA, Heritage, etc? I've looked through realized prices for single signed WJs and of course they are all over the places depending on the specifics of each signature and the actual ball it was signed on.

Minuses for this ball would be:

-Some relative signature lightness in spots.
-Signature on side panel.
-Ball is personalized/inscribed.
-Not OAL

Pros would be:

-The ball is ONL/Int'l League from 1928, the one year Walter Johnson managed (and even had a few pinch at-bats) at Newark.
-The ball is in nice condition.
-The personalization has association to Walter Johnson's career. George McBride was Walter's teammate for 13 years and when Walter signed as manager at Newark he asked George McBride to be a coach. George had Walter sign this ball to his young nephew sometime that year.

This ball is mine and I'm not selling, but it's not directly in my collecting wheelhouse...so is something I'd possibly trade if a scenario came up, and I'd like to know how I should be thinking about it re: value.