ESL One Cologne 2014 Cobblestone Souvenir Package 
DreamHack 2014 Cobblestone Souvenir Package 
ESL One Katowice 2015 Cobblestone Souvenir Package 
ESL One Cologne 2015 Cobblestone Souvenir Package 
DreamHack Cluj-Napoca 2015 Cobblestone Souvenir Package 
MLG Columbus 2016 Cobblestone Souvenir Package 
Cologne 2016 Cobblestone Souvenir Package 
Atlanta 2017 Cobblestone Souvenir Package 
Krakow 2017 Cobblestone Souvenir Package 
Boston 2018 Cobblestone Souvenir Package 
The Cobblestone Collection in numbers
The Cobblestone Collection dates from 2014 and the CS:GO era. The catalog tags it as both an operation collection and a Souvenir collection: it has no case of its own, but it is tied to 10 Souvenir Packages, from ESL One Cologne 2014 to Boston 2018. That is why Souvenir copies of its skins exist next to the regular versions, and why the two should be priced separately.
Its 15 skins spread across six rarity tiers. AWP | Dragon Lore is the lone Covert item, with a float range of 0.00–0.70. The single Classified skin, M4A1-S | Knight, is limited to 0.00–0.10, which restricts it to Factory New and Minimal Wear. CZ75-Auto | Chalice, one of the two Restricted skins, shares that narrow range, while Desert Eagle | Hand Cannon starts at 0.01 and reaches 0.70.
Several skins further down also have short float ranges. MP9 | Dark Age and P2000 | Chainmail, the two Mil-Spec entries, end at 0.22; among the four Industrial Grade skins, MAG-7 | Silver is capped at 0.08 and Nova | Green Apple at 0.30. The five Consumer Grade finishes are Dual Berettas | Briar, MAC-10 | Indigo, P90 | Storm, SCAR-20 | Storm and UMP-45 | Indigo; all but Briar start at 0.06.
Every one of the 15 weapons appears once: five pistols, four SMGs, three rifles and three heavy weapons. The collection has no StatTrak™ versions, so Souvenir is the only special variant to look for here.
The lowest current marketplace offer for AWP | Dragon Lore is $10 899.00 (Factory New), and for M4A1-S | Knight it is $2 460.75 (Factory New). Both figures refer to regular, non-Souvenir copies.