Revolvers mostly.
Closest I would have in long guns from that era are a Winchester Model 1897 Riot Gun made in 1903 that was property of Esmerelda County, NV and a Winchester 1894 in 30 WCF made the same year. Mostly because that's the year my SAA was made:
Colt SAA made in 1903 Colt 1877 Lightning made in 1881
S&W Model 1 third version and Model 2 second version, both from 1877
Here are 2 Merwin & Hulberts. Unusual guns made in the 1880s Top one is spur trigger single action. Bottom one is a DA and the hammer spur folds down for pocket carry. These guns are held together via a vacuum seal and twist apart to open.
Left is an Ulster Bulldog, Right is a Dutch 9.8 Nagant, note the safety lever on the Nagant, it locks the front of the cylinder and prevents cocking the hammer
2 IJs from the 19th century
Here is another S&W Model 2 38 SA 2nd Version with later grips than the older one above
Forehand & Wadsworth 38 Bulldog
Group shot of mlost of my suicide specials, the 2 derringers and the 2 NAA 22 Mags are modern
S&W New Departure made 1901 and NAA 22 Mag