Ed Bolden Negro League signed letters value?

[Lonzilla]

I recently acquired a few Negro League historic items and would like some information as to the value of them
First is a NY Black Giants mailing envelope, postmarked March 21, 1933. It's addressed to Paul Kelsh, Jr who was a Philadelphia ballplayer, or aspired to be. Therer's no records of him playing in any of the major teams, but Philly had alot of different black leagues I'm told.
The 2nd item I got, also addressed to Mr Kelsh, is an envelope from Ed Bolden's Phantoms, Darby PA ("Champions Inter-Urban Twi-Light League 1929-30-31") dated April 11, 1932. There's a letter inside on team stationery, typed and signed by Edward Bolden.
This letter pretty much tells Mr Kelsh that because the team has no home field they can't really give him a full tryout, but he's welcome to workout with the team.
The last item is a Philadelphia Stars envelope and letter on team stationery dated April 9, 1935. It is typed and starts out "Dear Friend Paul" it is also signed by Ed Bolden, and in the letter he wishes Paul Kelsh a speedy recovery (it was sent to Mercy Hospital, 50th & Woodland Ave, Philly). The letter also mentions the team's next few games at the time: 'Next Sunday we will play Wentz-Olney at Front and Chew Streets. Easter Sunday the White League team in Reading, Pa. The Sunday following Rapheal, 58th & Elmwood Ave."
I'm sure it's all quite rare, and again they seem like items which would sell for a decent amount and I would like to sell them. I hope the pictures show up, this isn't exactly my strong suit

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