A 1985 New York Yankees media guide with Don Mattingly on the
cover is worth about $5.-$10.
As with all collectibles, condition is the most important factor
of all providing that the item is authentic. With Media guides the
slightest flaws will bring the price down significantly. Common
flaws would be bending, creases, rips, loose pages, cracked
binding, and writing on the cover.
For more information on media guides, an other vintage baseball
publications see Related Links below.