Effective immediately, all Mavin accounts will be shut down. This is the first step in winding down the company, and we will be wiping all private user data from our servers.

Look up what your stuff is worth. Get real market values based on what it sold for in the past and what it's currently selling for. Generate an appraisal by choosing comparables that match the …

Apr 10, 2018 · Mavin is the free search engine for people to look up what their stuff is worth.

The Standard Catalog of Baseball Cards is the trusted price guide for more than 20 years. This baseball card collectors info book contains 500,000 listings of baseball card values from …