400 BC - 300 BC

Athena   Attica
Αθήναι   Αττική




 Tetradrachm / Τετράδραχμον AR 22
SHH 5978

5978 Athena Tetradrachm AR links 5978 Athena Tetradrachm AR
5978 Athena Tetradrachm AR rechts

Parameter

Obverse
Reverse
Notes



Reference
Provenance
17.082 g   16.6-28.0 mm   4.637 eqmm   tmax 6.4 mm   rh 0.9 mm   6:00 o'clock   VF
σ(SigmaTest, 240 kHz) = obv. 24.4-28.6, rev. 33.4-48.2 MS/m
Helmeted head of Athena right.
Owl standing right, head facing; olive-sprig and crescent behind; ΑΘΕ downward on right.
Coin has been struck on folded flan.
John Kroll, Oxford University
Striking and Restriking on Folded Flans: Evidence from Athens, Elis, Thebes, and Aegina
XV International Numismatic Congress (INC), Taormina, 21.-24.9.2015;
Hoover HGC IV 1599
Ex CNG 365E/142, 16.12.2015

Parameter            Measurement coordinates  r and φ are  referred to the die orientation of the obverse

Elektrische Leitfähigkeit SigmaTest, 8 mm probe, 23.8.2021

Comment
κΗz

60
120
240
480
960

r
φ




σ  MS/m

mm
°
eqmm












Initial obv

24.2
25.8
27.9
31.2
35.1

0
    0
4.637

rev

35.4
38.4
41.0
43.4
44.7

0
    0