First model 1855 COLT revolving sporting rifle, cal 40

First model 1855 COLT revolving sporting rifle, cal 40 . These are impossible to find, only aroun d1000 ever made in cal 36 and the super rare dal 40 as this one. comes with barrellengths of 21,24,27 and 30 inch.  This one has the 30 inch barrel. 

The cylinder is serial 835, the frame and the rest is 1000, one of the last ones made,, 

Works fine, cylinder has 100 % scene and approx 80 % of the orig. blue, the barrel is pitted onthe outside and is hiding the adress, stock is original , oiler and cleaningrod present but cleaned. 
Still a highly desirable revolving rifle, rarely for sale.