Yes, Researcher, but it's 2017.
SIX and a quarter pound guns are routinely chambered for 20 gauge 3" these days. I find 2 3/4" chambers curious. 'Why' eludes me.
As far as maybe being a special order, there's no telling but the fact is that it's for sale by a dealer now.
Sales departments usually hedge heir bets on bird guns, and use more than one species of bird on a general purpose gun. Appeals to a wider audience that way. Very few rim fire rifles have engravings of big game animals, and it's not likely you will find a bunny chiseled on a 470.
As far as the girl on the gun... that's a sure sign you're going to have trouble with it.