Hi, welcome to the forum. Not a maker's mark but a Hungarian domestic silver hallmark, the head of a greyhound facing right, for small silver articles used 1922-1937, number 3 to the left of the greyhounds-head for silver minimum 800/000 or higher (835/000). At the right of the greyhounds-head small letter B(?) for the assay office Budapest.
For the record. After the collapse of the Austro- Hungarian Empire in 1922, Hungary continued to use the greyhounds dog head introduced in 1872 for small silver articles. The bracelet could have been made around the beginning of the 20th century during the Austro-Hungarian Empire.
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