I was just contacted by a representitive of the soon-to-open National Law Enforcement Museum in DC. They are looking to buy or borrow for long term an older and correct police bike.
Ideally, they are looking for a correct one from the 1930s through mid 1960s.
If you have something like this to sell or loan you can contact Brian through an email at
bholls7749@sbcglobal.net.