Value of Boggs Rookie Jersey and Mattingly Game Used Jersey, Hats and Helmet

I'm hoping the forum can help me out with with the value of a few game used items I have. My father was an avid collector, and had these items in his collection. Unfortunately he recently passed, and I wanted to get a better sense of the approximate values of these items. He has all of the original receipts with these items, and also had most of the items authenticated by Dave Miedema circa 1993/94 (original letters still with the items). He has the following:

• 1983 Boggs Road Jersey
• 1993 Mattingly Home Jersey
• Circa 1985 Mattingly Batting Helmet
• Circa 1985 Mattingly Hat
• Circa 1989 Mattingly Hat

Thanks!

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