Mr. Schwiebert, I have a question for you about some 1950t block numbers if you can help I would appreciate it.  
I think I have located a block but need to see if any of these numbers are the right casting numbers.

3542263A2
22883D
37114670
12-1-PO

not for sure if its the right numbers or not but any help would be great. Thank you for the help. Ryan