Slash

This may not be the exact model but it is seen in the ernie bal reel to reel video which is a short "documentary" of SMKC recording World on fire. He is playing a 12 string Gibson sg at 18:09.

This guitar was used for the rhythm sections for the songs "The Last Fight" and "Gravedancer".

Slash uses a Dunlop CryBaby 535Q.

The MXR M135 Smart Gate is used by Slash.

From the article Slash's Les Pauls Through The Years that was published on Gibson's website.

"Released in 1997, this guitar took a bit of inspiration from a slim-necked Gibson Custom Shop Les Paul Slash had built for him in 1990, at least in the sense that both were bright red …but more on that later. The Snakepit model featured the logo of Slash's Snakepit (his post-G'n'R band) and an elaborate, curling cobra fretboard inlay. It was limited to 100 guitars worldwide, although the initial plan was to build 50. They're quite rare and tend to change hands for a lot of money today."

He uses it in his featuring with Ozzy Osbourne and Motörhead on "I Ain't No Nice Guy"

Slash started using this guitar on "Not In This Lifetime" Tour with Guns N Roses in 2016. He uses it occasionally on the songs like Attitude, The Seeker etc.

This mic is used by Slash with his Talkbox, at 0:11

In the picture you can see Slash playing a Slash Rosso Corsa Epiphone Les Paul.

In this picture, Slash can be seen recording in the studio using a black Fender Precision Bass, equipped with a Maple fretboard, he's also seen using a pick while doing such.

In this video Slash can be seen using a B.C. Rich MK9 Mockingbird during the song "Sorry".

In this video performance of Dust N' Bones from 1991, Slash can be seen playing a Sanchez Superstrat.

Slash frequently played the Gibson J-45 during the "Not in This Lifetime" tour, which began on May 27, 2017. This is highlighted in a tweet from Gibson Guitar showcasing the Slash Collection Gibson J-45 Standard.

In this photo of Slash guitar collection. You can see Gibson Les Paul Black Beauty 1950s.

In this photo of Slash guitar collection, you can see Gibson Les Paul Junior Doublecut.

First Marshall amp to bear the signature of an artist, the Marshall JCM Slash Signature is an authentic reissue of the classic 2555 Jubilee head that was released in 1987 to celebrate the 25th Anniversary of the company. Only 3,000 units of the Marshall JCM 2555 Slash Signature amp were made from 1996 to 1997 and Slash used it for all tours ever since...

The MXR M134 Stereo Chorus is used by Slash.

Slash uses the Seymour Duncan Alnico II Pro Slash Signature Pickups for their medium to low output, which provides a gruff tone distinct from high-output pickups typically associated with heavy metal. This is detailed on Slashparadise under the section "Slash's Accessories."

"A lot of times, a high gain amp can be a big antenna for noise. With Monster, that's never been a problem because the shielding is so good."

“The Wah Wah pedal, you know, is probably the one effect that I use the most consistently. The thing about me and a Wah is just something that’s really pure sounding and has a really great sweep. You know, from like low to high it’s just got this really nice sweep to it. And so we worked together for years on the Wah Wah pedal and we finally have this simple Wah Wah pedal that just sounds amazing.”

At 23:21, Slash can be seen playing a wine red Custom Shop EDS-1275, on the song, ''The Dissident''.

In the picture you can see Slash holding an Epiphone Gold Top Les Paul.

Can be seen at 2:46

Slash used the Chris Derrig 1959 Les Paul Replica to record nearly every song and album, as detailed on Slash's World.

In the 1988 Ritz performance video and a photo from the Donington show the same year, Slash is seen using a Marshall JCM 800 2210. These amplifiers were likely rented as substitutes for the Jubilee models, being the only other high-gain Marshalls available at the time.

In this video from Friedman Amplification, the Line6 MM4 is shown to be a part of Slash's B rig for the Slash Feat. Myles Kennedy & the Conspirators' Living The Dream tour in 2018.

This guitar was used for the rhythm part of "Sucker Train Blues".

Slash uses the Marshall 1960 BV 4x12 cabinet.

In this user-uploaded photo, Slash is pictured with his Gibson Slash Les Paul Custom Electric Guitar, highlighting his preference for custom Les Paul models.

Slash appears to be playing a Gibson Sheryl Crow, though I don't know what Pick-Up is on the Guitar.