Yup, Schwinn bought the companies Excelsior and Henderson and this is one of the bikes they built after those acquisitions, however we are trying to find out the specifics of the model, year, options, etc. People have told us this is one of the more rare and expensive bikes from Schwinn of its time but no confirmation on paper as of yet.
Ok, I saw your posting title
"help with any info" so, figured identification of builder was helpful. I look at construction halmarks vs what badge is on a bike, many get swapped over time.
Schwinn used a numeric identification system of their motorbike models.
It's just called a motorbike #?
#9 was un-equiped,
# 10E was equipped, light & can, tank, rack.
Yours looks like a #9 with an added tank at some point.
To help date it, more forensics please.
Serial number......
Pull crank to observe stamping
Rear hub pic (if original)
Are wheels chrome or nickle?