Colson wheelchair tircycle bike looking for info

[shelwheels]

Hi,
I bought this bike at an auction because it was so unique and I'm a wheelchair user. There's a tag on the seat that says Colson K101P but that is the only markings I can find and I can't find any info about it online. Anybody know anything about it?? Thanks

 

[user 135]

Going to be tough to find.

This post at thecabe has a very similar one. http://thecabe.com/vbulletin/showthread ... ht=cripple

based on this advert in Cosmo, it could be from 1921 or earlier.
http://books.google.com/books?id=cwTnAA ... on&f=false