Help I need to ID an older Zeagle Reg!

[Avonthediver]

I need help with id'ing this old Zeagle reg
I bought it new in 1997 and it's last service was 2003. My brother likes to use it so I need to service it.
Any help would be great.

 

[tbone1004]

basically an Apeks TX50, so Zeagle T-50D

 

[diversteve]

It probably even said it on the purge before it rubbed off...