I am posting this to see if I can find out any info about my 79 series 1 bass 791426. thanks

Here's what I found out about your bass:
 
serial number: 79-1426
model name: Series I
model number: MBI4
top: Walnut
body: Mahogany
back: Walnut
neck: Maple and Purpleheart  
scale: 32 medium
fingerboard: Ebony
inlays: Mother of pearl
peghead veneers: Vermilion
pickups: SC-1
controls: Series I
originally made for: not recorded
birthday: September 13, 1979