While a drachm was always divided into 6 obols, the actual weight was dependent on the standard used. Under the attic standard, a drachm weighed 4,3 grams, under the Corinthian standard 2,9 grams, and the Aeginan standard defined it as 6,1 grams. And that's only three of them.
Drachms were also struck in bronze, most notably in Ptolemaic Egypt.
Reverse: Zeus enthroned left, holding eagle and scepter AΛEΞANΔPOY
Die Orientation: -
Weight: 3.9 g
Reverse: Zeus enthroned left, holding eagle and scepter; grape bunch AΛEΞANΔPOY (ΠYPΦ)
Die Orientation: -
Weight: 4.3 g
Reverse: Zeus enthroned left, holding eagle and sceptre, monogram on left / AΛEΞANΔPOY
Die Orientation: -
Weight: 4.3 g
Reverse: ΑΛΕΞΑΝΔΡΟΥ / Zeus seated on stool-throne left, eagle on outstretched right hand, sceptre in left hand
Die Orientation: -
Weight: 4.21 g
Reverse: Zeus enthroned left, holding eagle and scepter, forepart of pegasus left in the left field; AΛEΞANΔPOY / (NO)
Die Orientation: -
Weight: 4.1 g
Reverse: Zeus enthroned left, holding eagle and scepter, barleycorn under throne, spear-spike right AΛEΞANΔPOY
Die Orientation: -
Weight: 3.86 g
Reverse: Zeus Aëtophoros seated left; N in left field; Σ below throne.
Die Orientation: -
Weight: 4.21 g
Reverse: ΒΑΣΙΛΕΩΣ ANTIOXOY ΕΥΕΡΓΕΤΟΥ / Nike advancing left, holding wreath in her right hand; to outer left, two monograms
Die Orientation: -
Weight: 3.87 g
Reverse: anchor flukes up; A / crayfish
Die Orientation: -
Weight: 2.9 g
Reverse: club; ΒΑΣΙΛΕΩΣ APXEΛΑΟΥ ΦΙΛΟΠΑΤΡΙΔΟΣ TOY ΚΤΙΣΤΟΥ / Λ_Θ
Die Orientation: -
Weight: 3.3 g
Reverse: Athena standing left, holding Nike with wreath, resting hand on spear and shield; BAΣIΛEΩΣ / APIAPAΘOY / EYΣEBOYΣ // (ΠI) / E
Die Orientation: -
Weight: 4.25 g
Reverse: Athena standing left, holding Nike and resting hand on grounded shield; BAΣIΛEΩΣ / APIAPAΘOY / EYΣ[E!]BOYΣ, (AY) left; (ΠAΦI) in the middle; (ΔI) right, ΛΓ - year 33
Die Orientation: -
Weight: 4.3 g
Reverse: Athena holding spear and Nike, shield at her feet; BAΣIΛEΩΣ / APIAPAΘOY / EΠIΦANOYΣ, M / A
Die Orientation: -
Weight: 3.9 g
Reverse: Athena holding spear and Nike, shield at her feet; BAΣIΛEΩΣ / APIAPAΘOY / ΦIΛOMHTOPOΣ, M / K / IA
Die Orientation: -
Weight: 3.98 g
Reverse: Athena holding spear and Nike, shield at her feet; BAΣIΛEΩΣ / APIAPAΘOY / EYΣEBOYΣ, T_Λ / B
Die Orientation: -
Weight: 4.1 g
Reverse: Athena standing left holding Nike with wreath spear and shield on the ground; trophy to the left; BAΣIΛEΩΣ / AΡIAΡAΘOΥ // EΥΣEBOΥΣ KAI / ΦIΛAΔEΛΦOΥ / (ΠΛΘMO) / E
Die Orientation: -
Weight: 4.2 g
Reverse: Athena standing left, holding Nike with wreath, spear and shield; BAΣIΛEΩΣ / APIOBAPZANOY / ΦIΛOPΩMAIOY, (MT) / ΘK
Die Orientation: -
Weight: 4.2 g
Reverse: Athena holding spear and Nike, shield at her feet; BAΣIΛEΩΣ / APIOBAPZANO[Y] / ΦIΛOPATOP, Z?
Die Orientation: -
Weight: 3.9 g
Reverse: ΒΑΣΙΛΕΩΣ ΑΡΙΟΒΑΡΖΑΝΟΥ ΕΥΣΕΒΟΥΣ ΚΑΙ ΦΙΛΟΡΩΜΑΙΟΥ Athena standing left, holding Nike on outstretched right hand and shield and spear in left hand; in upper right field, monogram; in lower left field, crescent and star; in exergue, [Θ].
Die Orientation: 0 H
Weight: 0 g
Reverse: Athena holding spear and Nike, shield at her feet; BAΣIΛEΩΣ / AΡIOBAΡZANOΥ / EΥΣEBOΥΣ / KAI ΦIΛOΡΩM, star over crescent / HXA / IA
Die Orientation: -
Weight: 3.76 g
Cassius Longinus had him executed in 42 BC because he would not allow more Roman intervention in his kingdom.
Reverse: ΒΑΣΙΛΕΩΣ ΑΡΙΟΒΑΡΖΑΝΟΥ ΕΥΣΕΒΟΥΣ ΚΑΙ ΦΙΛΟΡΩΜΑΙΟΥ / Athena standing left, holding Nike, spear, and shield; star and crescent to left, monogram to right, IA (date) in exergue.
Die Orientation: -
Weight: 3.54 g
Reverse: owl standing right, head facing, olive sprig and crescent left; AΘE
Die Orientation: -
Weight: 3.9 g
Reverse: eagle holding snake; ΛAX
Die Orientation: -
Weight: 3.46 g
Reverse: cornucopiae; BAΣIΛEΩΣ / ΔHMHTPIOY / ΣΩTHPOΣ, A / (ΠA) Π / AΞP
Die Orientation: -
Weight: 3.96 g
Reverse: Double stellate pattern within double linear square; ΔYP_KΛEI_TOPI_OY
Die Orientation: -
Weight: 3.29 g
Reverse: Pegasus flying right; EMΠOPITΩΝ
Die Orientation: -
Weight: 4.47 g
Reverse: incuse square
Die Orientation: -
Weight: 3.6 g
Reverse: ΑΠΕΙ - ΡΩΤΑΝ - Eagle with closed wings standing right on thunderbolt, oak wreath around.
Die Orientation: 9 H
Weight: 4.32 g
Reverse: sea eagle flying left grasping a dolphin; IΣTPIH / A
Die Orientation: -
Weight: 5.1 g
Reverse: head of Aphrodite or nymph Peirene left; K
Die Orientation: -
Weight: 1.83 g
Reverse: horse grazing right; ΛΑΡΙΣ / ΑΙΩΝ
Die Orientation: -
Weight: 5.5 g
Reverse: ΛAPI–ΣAIΩN, mare and her foal standing right
Die Orientation: -
Weight: 5.56 g
Reverse: incuse square with angles in the corners forming cruciform pattern, pellet in center
Die Orientation: -
Weight: 2.7 g
Reverse: ΦIΛIΠΠOY / Zeus seated left on throne without back, nude to waist, himation around hips and legs, right leg forward, feet on footstool, eagle in extended right hand, long scepter vertical behind in left hand, monogram below throne
Die Orientation: 0 H
Weight: 3.88 g
Reverse: Rose with bud to right. Control: Isis headdress to right; all within incuse square
Die Orientation: -
Weight: 1.93 g
Reverse: rose with bud to right, pileus left all within incuse square; ΣTAΣIΩN / P_O
Die Orientation: -
Weight: 2.85 g
Reverse: Rose with bud to right, POΔION above, star and Δ to left
Die Orientation: 12 H
Weight: 3.46 g
Reverse:
Die Orientation: 0 H
Weight: 2.98 g
Reverse: Rose with bud to right, shield in left field; ΑΡΤΕΜΩΝ above P-O across fields
Die Orientation: -
Weight: 2.39 g
Reverse: Dove flying Left inside Olive Wreath
Die Orientation: -
Weight: 5.53 g
Reverse: quadripartite incuse square with two opposing quarters filled, the others stippled
Die Orientation: -
Weight: 5.7 g
Reverse: Eagle with dolphin
Die Orientation: -
Weight: 6.1 g
Reverse: Artemis standing right, quiver on shoulder, holding torch and arrow; APTEMΩΝ ΠΑΠΙΟΥ__AP TABHNΩΝ
Die Orientation: -
Weight: 2.8 g
Reverse: Athena Itonia right; Π-I across central field
Die Orientation: 7 H
Weight: 4.14 g