BMX Bikes / R / Redline / 1975 Redline Squareback

 
1975 Redline Squareback
 

1975 Redline Squareback

The original frame that began the Redline legacy.

Been sitting in my dads basement for 20+ years. I believe it was built by Mr Kastan himself??? I never rode it cuz the top tube was too short for me. Has a whole drilled on the bottom bracket shell between the numbers 6 and 7 so I'm guessing its serial number is 6?7 which would make it a 75 instead of a 74?  It appears to have a small weld going up the top tube at the back of the gusset (see pic).  Fork is nice chrome, stamped with Akisu and looks like SE landing gear.  Any info you can give me would be appreciated. 

Submitted by chopperbuilder