Thank you for taking the time in helping me research my question for the meaning List 432 after the serial number of my Greener rifle.
I have tried a couple of times to use the e mail associated with W W Greener's web site provided for connecting to them (sales@wwgreener.com) with out a reply and my second attempt was returned undeliverable.
I did write a letter to Greener this week so perhaps its anticipated reply will answer my question.

It will be awhile before I can begin to shoot and test this rifle here in Minnesota given our current weather pattern.
I am still in the process of tracking down the correct brass (500-450 #1 express) for this rifle, bullets will be easy and dies not impossible to obtain.

Regards,
Gerald