First: Constantine I AE3 "Two Soldiers" Rare Constantine I "the Great" AD 306-337 AE3 "Rome's glorious army" Obv: CONSTANTI-NVS MAX AVG - Rosette-diademed bust right, draped and cuirassed Rev: GLOR-IA EXERC-ITI - Two Soldiers standing front, heads turned inward at two standards between them, each holds a spear Exe: SMHA Heraclea mint AD 330-333 = RIC VII, 111 (A = r3), page 557. Search for Heraclea RIC VII 111.2 here:
http://www.wildwinds.com/coins/ric/constantine/t.html
Second: Constantius II, Antioch. 347-348 AD. DN CONSTAN-TIVS PF AVG, pearl diademed head right / VOT XX MVLT XXX within wreath. Mintmark SMANΔI. RIC VIII Antioch 113. Search for Antioch RIC VIII 113, DI here:
http://www.wildwinds.com/coins/ric/constantius_II/t.html
Now, when it comes to catalogue value, there really isn't a catalogue value for ancient coins such as for modern. Value is usually determined by market prices and those vary a lot. You can have the same coin sell for 5$ and 50$ the same week depending on how much the person buying it likes it. There isn't any accurate price guide to go by. If I was selling these I would ask for 5$ each if sold on their own or about half that if I put them in a lot.
I collect and deal in ancient Roman coin. In case you're looking for affordable ancient coins or need any help with the coins you already have send me a message.