I think it was an anime. But the characters looked like dogs with long or pointy ears and pointy noses. It was about a detective who solved the mystery of a train robbery of gold bricks using a pair of gloves as inspiration. Like the gloves that he got from a lady who served him tea, which were connected by a piece of string, the train cars were ties together and the middle car slipped of the train on to another set of tracks. It was a short series of mysteries. Another one was about a submarine.

Canine sleuth anime

Possibly,.

Sherlock Hound

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