Mark London found a record for Max Greenblatt,using familysearch.org
but the petition index card only has volume 93 and #23199 P199. "The
Max Greenblatt that I'm looking for, was born in 1890, and had been in
America since 1914".

Mark, the naturalization index on familysearch is 1914 through 1932. i
found a petition for a client in volume #110 and #27414 and it was
1921. Hope this is helpful.

also mark, i would look at what can be found on italiangen's New York
naturalization index...there are quite a few max greenblatts who
naturalized through Bronx County.
happy hunting!
Phyllis Kramer, New York City, Palm Beach Gardens, Fla
V.P.Education, JewishGen Inc: https://www.JewishGen.org/education
Researching (all Galicia)
...KRAMER, BEIM >from Jasienica Rosielna
...SCHEINER, KANDEL >from Strzyzow & Dubiecko
...LINDNER, EICHEL >from Rohatyn, Burstyn
...STECHER, TRACHMAN >from Nowy Zmigrod, Dukla
family web site: https://KehilaLinks.JewishGen.org/Krosno/Kramer.htm