Markov (New York)   8 1/2" by 11" catalogs. Markov specializes in coins of the former Soviet Union, with strong selections of some series seldom seen elsewhere. He has remarkable runs of "Central Asian" pre-Islamic and Islamic coins. He has outstanding "Black Sea area" runs, such as Panticipaion, Kings of the Bosporus, and Byzantine AE from Cherson.  He also offers, but not in large numbers, traditional Greek and Roman coins. In the numbers below I will count early Central Asian (Sogdiana, Bukhara, Chach, Georgia, etc.) and early Arabic coins as "ancient."  He also participates in the "New York Sale" auctions where some of his most outstanding coins appear.
Numbers 1-3 are "buy-or-bid" sales, thin, with images that are not good. Numbers 4 and 5 are not ancients. Numbers 6 to date are of much better quality -- not the finest images but very good. In these issues the coins are illustrated throughout.

1  (2/95)  MV, LQP.  299 ancients among 689 on 11 ppl among 24 ppl. 10 G gold, 7 R gold, 15 Byz gold, 88 G, 14 Oriental G, 9 Bukhara, 13 RR, 113 RI, 20 Byz AE (including 10 of Cherson)
2  (12/95)  MV, LQP.  130 ancients among 471 on 5 ppl among 17 ppl.  8 G gold, 3 Byz gold. 5 Kushan gold, 36 G,  1 RR, 25 RI, 5 Hephthalite, 34 Arabic, 13 Georgia.
3  (5/96)   MV. LQP. 110 ancients among 259 coins, photographed throughout.  3 G gold, 18 Arabic gold, 10 G, 8 Bosporus, 8 RR, 13 RI, 33 Byz AE (including 14 of Cherson), 17 Arabic.
(4 and 5 are not ancients and not included.)
After this, all are MV (including very expensive coins) with MQP and good photos.
6  (10/98)  MV. MVP. 268 ancients  among 1038 lots, illustrated throughout.   52 G, 15 Bosporus, 9 Parthian, 2 Sasanaian, 18 RP, 3 RR, 43 RI, 5 DA, 6 Khwaresmia, 3 Samarqand, 5 Sogdian cash, 6 Chach, 14 Bukhara, 3 Arab-Sasanian, 78 Arabic of Asia, 6 Armenia.
7  (9/99)  351 ancients among 850. 103 G, 15 Bosporus AE, 4 Kushan, 12 RP, 34 RR, 44 RI, 6 Chaghaniyan, 28 Byz (including 18 of Cherson), 100 Arabic.
8  (4/00)  246 ancients among 462. 87 G, 8 RP (including 5 zodiac drachms of Alexandria), 10 RR, 58 RI (including rare 5th C. gold), 3 Byz, 8 Khawarazmia, 8 Bukhara, 3 Chach, 49 Arabic.
    Late Roman gold (29)
9  (12/00)  232 ancients among 452, plus 3 color E among 4. 16 electrum staters of Kyzikos (all also enlarged), 49 G, 25 Parthian, 26 RP, 7 RR, 57 RI, 11 Byz, 39 Arabic
    electrum of Kyzikos (16)
10  (10/1) 440 ancients among 869, plus 2 color E among 4. 6 electrum of Kyzikos, 164 G, 9 Panticipaeum, 5 Bosporus, 18 Parthia, 16 Baktria, 6 Kushan, 19 RP, 26 RR, 88 RI, 10 Byz (Including 4 of Cherson), 11 Georgia, 12 Sasanian, 47 Arabic.
11  (9/03)  454 ancients among 902, plus 1color E among 4. 111 G, 34 Jewish related, 12 Persis, 6 Parthian, 9 Kushan, 34 RP, 27 RR, 101 RI, 27 Byz (incl. 3 of Cherson), 10 Sasanian, 21 Hunnic related, 2 Khawarazmia, 3 Chaganian, 4 Samarqand, 16 Bukhara, 6 Chach, 3 Khazar, 9 Arabic, 4 Volo-Bulgrian.
    Hunnic related (21), Khazar (3)
12  (9/03) numismatic literature, not coins.
13  (24-25 Nov. 2004)  MV. MQP. 317 ancients, 83 Arabic, 22 Mongol among 759, illustrted throughout, a few B&W enlargements, plus 2 color ppl of enlargements. 85 G, 27 RP, 24 RR, 125 RI, 16 Byz, 3 Georgia, 13 Sasanian, 8 Huns, 83 Arabic, 22 Mongol