Rex - Chalky Rearing Stallion

I was perusing eBay a few weeks ago and came across this piece. It looked chalky, so I took a stab at bidding on it. A few days later, I had won it and it was here.

 Rex, Breyer Classic Rearing Stallion, #185, 1965 - 1980, $9.41, eBay. 5/2015.

And yes, he is a chalky!