1890 to the start of prohibition, just because if you were a gangster in those days unless you were a sharp cat you probably didnt make a dime. Also there were so many different factions and players moving around all over the country. The fact that you can still find more and more the deeper you look into this era is what i like so much. Second for me would have to be prohibition to the 40s, those 20 years shaped the next 80 years. Im not as big on the newest eras just because i really dont consider them the same bread, ecspecailly after the start of the 70s, pic put it the best i have ever seen it said" its like the light came on in 77 and everyone said i can't get a job nobody would know im a wiseguy." Ok? I guess you would rather look cool than stay out of jail and make money.