Heavy round barrel.
Straight "perch belly" type grip
Double set triggers.
Crescent buttplate with trapdoor.
It looks to me to be a little high at 850 to me but it's been sitting there a while.
I have never seen one with the round barrel ,double sets and crescent. Usually the round barrel guns are 28" barreld with a flat buttplate.
If it's been there a while, offer 'em a bit less, see if they will take it.