[PTucker]

Need to locate the serial number on a 1935 Bowlus travel trailer

[talaniman]

I found this by googling,

1934 Bowlus Papoose Trailer for sale: Anamera

Records indicate that six Papoose trailers were built and this prototype example is immediately distinguished from the three other known survivors by its unique axle placement, skirted pontoon fenders, and lack of a serial number.

But you should check here for more information,

https://www.bowlusroadchief.com/about.html

https://www.bowlusroadchief.com/contact.html