See COVE Master Map entry on Germany: 

https://editions.covecollective.org/place/germany

In London Labour and the London Poor edition: 

Phase 1

Of the Street Sellers of Live Birds. (Volume 2): "The foreign supply to this country is now principally from Holland and Germany, where canaries are reared in great numbers, with that care which the Dutch in especial bestow upon everything on which money-making depends, and whence they are sent or brought over in the spring of every year, when from nine to twelve months old."

Phase 2

Of the Street-Buyers of Rags, Broken Metal, Bottles, Glass, and Bones. (Volume 2)

Of the Jew Street-Sellers of Accordions, and of their Street Musical Pursuits.

Exhibitor of Mechanical Figures. (Volume 3) 

Acrobat, or Street-Posturer. (Volume 3)

The Dancing Dogs. (Volume 3)

Of Prostitution in Ancient States: General View. (Volume 4)