What is this date code?

[Jim585]

What do you think the date codes are & what month/year?
Maybe a J
Then a line or an l or I
Then an O or C
? Not sure

[nambujim]

My friend Tom Hemphill says the "J" is the final inspectors mark.

Jim Peterson
Charlotte, NC

....................for some reason, Tom cannot get on the RSA site.

JP