Autograph values are based on many factors. Scarcity, demand, condition of the item, and authentication are all important characteristics.
Personalized celebrity autographs
that are made out to a specific person's name are generally of lesser value than basic signatures (unless your name matches the inscription!).
On the other hand, inscriptions that relate to the signer's accomplishments (MVP, Hall of Fame, etc.) can increase the price of the signature significantly. Some players at
autograph shows
limit or eliminate inscriptions altogether.
The price of an autograph if a person dies increases, and generally continues to increase the longer the person has been deceased. If the demand of the signature continues to increase, so will the autograph worth.
The condition of the item is also important. A signed baseball that is pearl white with a beautiful autograph along the sweet spot is generally going to be worth more than one that is on a yellowed or stained baseball, with a faded signature.
Authenticity
of the item is critical in today's hobby. If you are collecting solely for sentimental reasons, it may not be your first concern; however it makes sense to protect your investment in the long run.
Autograph Values Guides
Tuff Stuff and Beckett also produce monthly and annual autograph price guides relative to sports cards, autographs, and signed sports memorabilia values.
You can also get a decent idea of up to the minute information on autograph prices by searching auction websites such as
as well, and seeing what similar items are going for in auctions and buy it now listings.
The context or relevance of the autographed item plays a large part in autograph valuation. For instance, a signed Michael Jordan jersey is going to be worth more than a football would be.
A Michael Jordan signed baseball ranks higher than some items because he did play baseball, but only for a short period of time, making those rarer.
Like anything else in a marketplace - the value of autographs ultimately comes down to what someone is willing to pay for it. The popularity of the signer to you is sometimes the overriding and most important factor.