The cheaper the crook, the gaudier the patter

Finished in 1941, so I watched so much at the out of date items such as telephones, guns, tobacco, curtains, automobiles and common wardrobe that I almost forgot to follow the story. It's about a private dick (Humphrey Bogart) looking for a golden statue of a bird once given from Maltese royalty to a Spanish one. These timepieces, they always give you something special and extra.