Adjustable Rocker Arm ID

Once again looking to MoParts family for some help. Trying to help a friend identify this set of 16 adjustable rocker arms which we were told are original Max Wedge parts. They were purchased at a big MoPar fanatic's estate auction and were NOS in an original MoPar box. Stamped number is E6263M. The side with the oiling hole has some different 2-3 character numbers ranging from W1 to W13. Two computer cards were in the box each indicating a quantity of 0008 with part numbers one digit off with one set of 8 being 02463242 and other set 02463243. Box had been opened.

Any help appreciated.

second pic rocker arms

those are the old factory iron rocker.

I agree

Mopar factory OEM type ductile iron rockers used for years in B and RB motors with solid lifters OEM cams

Thanks for the help folks. as always MoParts people are awesome.