Harlem was a blue berkshire dumbo.
Harlem came with Sinatra and Houdini
They came as a group of three from the pets@home adoption center. I was told their old owner had to move abroad and couldn't take them with him. I later found out these rats actually originally belonged to a work colleague of mine!
All three of them were somewhat nervous. They didn't particularly like being picked up and all needed a bit of work. Harlem was always in the middle with regards to how confident he was; he was not as bold as Houdini, but not as timid as Sinatra!
Harlem lived to a fairly decent age for a pet shop rat, but he then had a stroke, and he did not recover.
Why Harlem? I had a bit of New York theme going on.