Claudius IMinted: Philomelium, Phrygia Size: 17mm Weight: 4.91 grams Obverse: ΣΕΒΑΣΤΟΣ Bare head right Reverse: ΒΡΟΚΧΟΙ ΦΙΛΟΜΗΛΕΩΝ Zeus seated left on throne, holding patera and sceptre

Kings of Macedon - Alexander III Lampsakos MintAR silver drachm Weight:  4.09 grams Size: 15mm Obverse: Head of Herakles right, wearing lion's skinReverse:  AΛΕΞΑΝΔΡΟΥ, Zeus Aëtophoros seated left, holding sceptre; In left field, forepart of Pegasos left; monogram below throne.

Caligula Size: 15mm Weight: 3.99 grams Obverse: ΓAIOΣ KAICAΡ, bare head rightReverse: ΦΙΛΟΚΑΙCAP ΦΙΛΑΔΕΛΦΕΙΩΝ [...] Capricorn with cornucopia left

Julia Domna 193-217ADAE BronzeWeight: 5.78 grams Size: 22mm Obverse: IVLIA AVGVSTA, Draped bust of Julia Domna rightReverse: COL MEN ANTIOC Mên standing facing, head right, left foot on bucranium, holding sceptre and Nike; to lower left, cock standing left, head right

Greek coin from Blaundos Weight 6.00 grams Size: 19 mm Obverse: Laureate head of Zeus right Reverse: BΛAYNΔΕΩN / ΘEOTIMIΔO Eagle standing left, head right, with wings spread; filleted kerykeion to left, grain ear to right.

Kings of Macedon Ae bronze Weight:  5.99 grams Size: 14mm Obverse: Macedonian shield with star on boss Reverse:  ΦIΛAΔEΛΦEΩN. Thunderbolt within wreath; above 

Greek coin from Pergamon Size: 15mm Weight: 3.28 grams Obverse: No legend helmeted head of Athena right Reverse: AΘHNAΣ NIKEΦOΡOY above and beneath owl standing facing on palm branch, wings spread. ΣΑΣ-AP across fields

Greek coin from Pergamon Size: 16mm Weight: 2.52 grams Obverse: No legend helmeted head of Athena right Reverse: AΘHNAΣ NIKEΦOΡOY above and beneath owl standing facing on thunderbolt, wings spread 

Elagabalus AR silver denariusSize: 18mm Weight: 2.6 grams Obverse: IMP ANTONINVS PIVS AVG, laureate, draped bust right Reverse: P M TRP IIII COS III P P, Victory flying left holding open wreath, a small shield at lower left and right, star...

Caracalla (211-217 AD) Minted: Nicaea, Bithynia Size: 28.5mm Weight: 12.7 grams Obverse: ANTΩNINOC AYΓOYCTOC, laureate head right Reverse: NIKAIEΩN, Tyche standing left, holding rudder and cornucopiae 

ProbusSize: 21mm Weight: 3.5 grams Obverse:  IMP C M AVR PROBVS P F AVG Radiate and cuirassed bust to rightReverse: CLEMENTIA TEMP Emperor standing right, holding sceptre, receiving globe from Jupiter standing left holding sceptre; Γ below, XXI in exergue

You are buying all 18 coins. They range in size from 13-16mm.