Romanus II (959-963), Nicephorus II (963-969), and John (969-976)
Images.  

Romanus II (959-963). [16-20 mm]

E32 17			A431-432 So11.1-2	S1767 Romanus I	B936 LD ill-drawn	G884	DO III,II 36, pl. XL	B for his baby son, co-emperor Basil II Sokolova: Romanus II
E33 20- 18			A433-434 So10.8-9	S1718 Basil I	B---	G868	DO 18, pl. XXXIII	Associate rulers Basil II  and Constantine VIII Sokolova:  Basil II and Con VIII
E34 16			A--	S--	B--	G--	DO--	CNG 41 (3/97) lot 2439

 
Type 32
Romanus II
18mm. 12:30. 2.73 grams.
Quite convex/concave.
Sear gives this to Romanus I, as Sear 1767.
 

Type 33
Romanus II
19mm. 12:00. 2.22 grams.
Sear gives this to Basil I, as Sear 1718.

Nicephorus II (963-969).  [18 mm]

E35 18

A435-437 So10.3-4

S1784 LD

B945 LD

G888

DO III,II 9 pl. XLI

Type 35
Nicephorus II
18mm. 6:00. 4.08 grams.
Sear 1784.
 

John (969-976).   [18 mm]

E36 18

A438-440 So10.5

S1794 LD

B947

G889

DO III,II 8.1,8.3 pl.XLII

Zagreba claims a new type for John, his #65, with this obverse and a slightly variant reverse, but I see it as a miscast coin of this type.

Type E36
John
17 mm. 6:00. 3.41 grams.
Sear 1794.

Type E36
John
17 mm. 6:00. 2.61 grams.
Wonderful condition.
Sear 1794.