'Langley Patent Shoulder Grip', 1891
https://books.google.com/books?id=hc46AQAAMAAJ&pg=RA8-PA45&lpg



https://www.the-saleroom.com/en-gb/aucti...145/lot-3806414


Feb. 11, 1893 Sporting Life
MODIFIED GUN STOCK.
“Something New From England Which Isn't Popular”
A representative English gun firm recently devised a new gun stock which is quite a novelty, but not likely to find favor with many sportsmen. The firm terms the new stock a “modified stock.” This stock, while retaining the extreme drop at the butt, has a parallel bend along the face line from the comb to five or six inches back, giving the same alignment at any point between these limits, subject in some cases to slight modifications.



This ad is in "Pigeon Shooting" by A. W. 'Bluerock' Money, 1896 but I don't know when Scott first offered the Monte Carlo stock.
Cornell Pubs has a 1893 Monte Carlo B flyer with no mention of the stock
https://www.cornellpubs.com/old-guns/item_desc.php?item_id=2991



Sold by Kirby Hoyt
https://www.gunsinternational.com/guns-f...=101261239#lg-2

Didn't Greener have a humpbacked sorta MC stock ? It wasn't a "real" MC like the Scott.

Greener's Rational Stock in "The Gun and Its Development", 1907

The rational gun-stock was introduced by the author some time ago, and it embodies qualities long sought in pistol-grip guns, and the undeniable advantage of the straight stock.
In this stock, as will be seen from the illustration, there is more than the usual bend at the bump or heel, and that the comb is not straight, but arched slightly; and as the cheek touches the stock about midway between the heel and the thumb, it is there, and there only, that the stock need be straight.
With the usual English gun-stock, put up in the usual manner, it will be found that about one-quarter of the butt projects above, and has no bearing against the shoulder. This leaves the sharp narrow toe to steady the gun and to take the recoil. With the rational stock, the face of the shooter will be resting upon the stock when the bump or heel has reached a level of the shoulder, and the whole of the butt will find a hearing in the hollow of the shooter's shoulder. The bend of the gun will, with the rational stock, be about 2 1/2 in. at heel, 1 1/2 in. at comb, and 1 1/2 in. midway between heel and comb.

Bankart Cheek Pad, 1889
https://books.google.com/books?id=hc46AQAAMAAJ&pg=RA8-PA13&lpg




Rowley Pad in the July 6, 1901 Sporting Life
https://digital.la84.org/digital/collection/p17103coll17/id/42105

Looks a bit like the German "Schweinrucken" style- hog's back. Der Fuchs