Anonymous Khusro II type
AR Drachm
Mint: SK
Regnal year: AH 48 (668/69 AD)
33 mm.
4.02 gm.
Album 5 type; SICA 358
Diameter of obverse dotted border=23 mm.; diameter of reverse border=21 mm.
Die position=6h
Obverse: Bust right, Pahlavi legend; bism Allah rabbi in margin. E0, B0; hands: LR. Gobl countermark 11/B var. @ 6h.
Reverse: Mint name to right (SK); year 48 to left. Test scrape in 3rd quadrant.

Imitation (?) of anonymous Khusro II imitation
AR Drachm
Mint: SK
Regnal year: AH 48 (668/69 AD)
30 x 31 mm.
3.56 gm.
Album 5 type (similar to SICA 372, dated AH 93 [711/12 AD])
Diameter of obverse dotted border=23 mm.; diameter of reverse border=22 mm.
Die position=1h
Obverse: Pahlavi legend; bism Allah followed by pellet triplet; rabbi followed by pellet triplet. E2var. (like B10!), B1var. (like E4!), RAO=crescent.
Reverse: Mint name to right (SK). Attendants' hands=EE. No star or crescent.

Anonymous Khusro II imitation (circa 710 - 740 AD)
AR Drachm
Mint: SK
Regnal year: (blundered 60 YE (691/92 AD) (?))
30 x 31 mm.
4.07 gm.
Album 77 type (?)
Diameter of obverse dotted border=23 mm.; diameter of reverse border=22 mm.
Die position=9h
Obverse: Pahlavi legend; 'bism Allah rabbi' in margin. E0, B0, RAO=crescent.
Reverse: Mint name to right (SK); blundered date. Star and crescent at 9h up higher than normal. Attendants' hands=LR.

Anonymous Khusro II type
AR Drachm
Mint: SK
Date: [not sure]
32 x 31 mm.
3.80 gm.
SICA I ___ type
Diameter of obverse dotted border=24 mm.; diameter of reverse border=23 mm.
Die position=8h
Obverse: Bust right, Pahlavi legend; bism Allah rabbi in margin. Pellet at 6h. E0, B0 (reversed), RAO=large crescent.
Reverse: Attendants' hands=EE.
Note: Holed.

Rida (circa 790s AD)
AR Drachm
Mint: SK (blundered)
Date: - (blundered)
32 x 31 mm.
3.01 gm.
Album 89D variant (?); Sears Class IV
Diameter of obverse dotted border=22 mm.; diameter of reverse border=26 mm.
Die position=9h
Obverse: Bust right, Pahlavi legend; bism Allah in margin.
Reverse:

Rida (circa 790s AD)
AR Drachm
Mint: SK (blundered)
Regnal year: - (blundered)
30 x 32 mm.
2.77 gm.
Album 89D; Sears Class IV
Diameter of obverse dotted border=23 mm.; diameter of reverse border=24 mm.
Die position=3h
Obverse: Marginal legend: bism Allah rabi salaha rida 'In the name of God, Rida is upright!'
Reverse:

In the name of al-Ma'mun (810 - 833 AD)
AR Drachm
Mint: SK (blundered)
Regnal year: - (blundered)
32 mm.
3.06 gm.
Album 89K; Sears Class IV (?)
Diameter of obverse dotted border=xx mm.; diameter of reverse border=xx mm.
Die position=xxh
Obverse: Marginal legend: bism Allah rabbi imam al-Ma'mun
Reverse:
Note: Courtesy Stephen Album.