It doesn't exist. I think what you are asking about is a Model 686. Price range from 150-400 USD depending on condition.
You can view pictures of this tractor online. Simply do a Google Image search on that model. You can find pictures of the IH 656 at many places on the internet. For example there are several on RedPowerMagazine.com.
656 = 656/1 in fraction
656 when expressed as a fraction will be 656/1000 and when simplified is 82/125.
$656
Less than 10 cents.
656
656 + 46645 = 47,301
656 + 662 = 1,318
82
456 + 656 = 1,112
8.2
17.2632