Now, are they improperly cleaned?

Attention all hoarders: I have just came into 6 Roman coins. I can't read Latin, and have no time to search out a 'Pope' to read them for me...But my main question is,How can you tell if these were improperly cleaned, or otherwise messed with?

#2 is, Are they real? I looked on line for how to clean a coin and their answers were frigtening. Methinks they are asking you to destroy value, while talking about preserving value. I don't need to clean the coins myself, but sure would like to be able to know if they were fouled. #3. What are the dates or circa? I will post the picture of the coins, and if you can help, I can e mail you the pix so you can see them better. And any info regarding Roman coins, [how to read them, have they been cleaned etc]? would be greatly appreaciated. Respond to this journal please if you can. or to my e mail, dragonslayir@aol.com