You are buying all 3 silver coins in the photo. Sizes: 18-23mmWeights: 3.2 grams, 2.7 grams and 2.7 grams

Severus Alexander  - may suit someone who wants to detail itSize: 15mm Weight: 1.83 grams  Obverse: IMP CAES M AV[R SEV ALEX AV]; Laureate, draped and cuirassed bust right Reverse: Dido(?) standing left, on galley, holding cornucopia and aphlaston; murex shell...

Severus Alexander Minted: Caesaria, CappadociaSize: 22mm Weight: 8.0 grams  Obverse: ΑΥ Κ Ϲ(ΕΟΥΗ ΑΛΕ) ΞΑΝΔ; radiate and draped bust of Severus Alexander, right, seen from rearReverse: MHΤΡΟ ΚΑΙϹΑ ΕΤ (C or Z); basket with four corn-earsReference: S 588–9; Ganschow 835–836

Possibly Severus Alexander or GetaSize: 25mm Weight: 9.3 gramsObverse: Laureate draped bust rightReverse: Tyche standing holding cornucopia

Severus Alexander Minted: Philomelium, Phrygia Size: 16.65mm Weight: 1.95 grams  Obverse: Laureate head of Severus Alexander, right Reverse: ΦΙΛΟΜΗΛΕΩΝ; eagle facing, head right, spreading wings Ref: RPC VI №: 5774 (temporary), BMC 21, Cop 653 and var.

Severus Alexander Size: 18.97mm Weight: 3.82 grams Obverse: M AVΡ CEV AΛEΞANΔΡOC AYΓ, laureate, draped and cuirassed bust right Reverse: NIKOMHΔEΩN ΔIC..., Octostyle temple with triangular pediment 

Severus Alexander Minted: Philomelium, Phrygia Size: 17mm Weight: 2.23 grams  Obverse: ΑΥ Κ (Μ) ϹΕ(Υ)Η ΑΛΕΞΑΝΔ(Ρ)(Ο)(Ϲ); laureate head of Severus Alexander, right Reverse: ΦΙΛΟΜΗΛΕΩΝ; eagle facing, head right, spreading wings Ref: RPC VI №: 5774 (temporary), BMC 21, Cop 653 and var.

Severus Alexander Minted: NIKAIADenomination: AE Assarion Size: 22mm Weight: 6.16grams Obverse: M ΛVP AΛΕΞΛΝΔΡΟC K, Bust of Severus Alexander facing right Reverse:: NI-KA-IE-ΩN, between three military standards. Provenance: Sammlung Prof. Dr. Weiser; ex Gorny & Mosch Auktion 306, 2024, Los 1337; ex Münzzentrum...

Severus Alexander Size: 26.5mm Weight: 10.9 gramsObverse: ΑΥ Κ ϹƐΟΥΗ ΑΛƐΞΑΝ; laureate and draped bust of Severus Alexander right seen from rearReverse: ΜΗΤΡΟΠ ΚΑΙϹΑΡ ƐΤ Γ; Mount Argaeus; on summit, radiate figure standing facing, holding long sceptre Ref: RPC VI №:...

Severus AlexanderSize: 18mm Weight: 4.47 grams Obverse: IMP CAES M AVR SEV ALEXANDER AVG laureate bust right Reverse: COLONIA BOSTRA Marsyas standing, right on pedestal, holding wineskin over shoulder and raising hand

Severus Alexander. A nice denarius of the emperor in an uncleaned stateSize: 18mm Weight: 3.09 gramsObverse: IMP C M AVR SEV ALEXAND AVG, laureate, draped bust right Reverse: P M TR P III COS P P, Alexander standing left, holding globe...

Severus Alexander - its a really bad photo. The coin is much nicer in hand and not "shiny"Size: 20mm Weight: 5.8 gramsObverse: Laureate head rightReverse: 3 double-ears of barley bound together