That Gehrig last sold for $3210 in July,
according to VCP (but VCP average is around $2750 now). The most recent SGC 2 Mathewson white cap sold for
$1200 on eBay, but yours looks nicer, so let's call that $1500. If you're only adding $500 on top, that seems maybe too good to be true. Are you doing this through Veriswap or some other avenue that ensures a smooth transaction?