Brambilla was a well known MIlanese frame builder dating from the 1920s. It is said that Sante Pogliaghi continued the brand of his aunt & uncle Brambilla that had a similar logo. Also frames attributed to Pogliaghi with the serial number range 6000/7000 were in fact Brambilla bikes and the higher numbers begin Sante production in the same location and shop. 

Newspaper account with
 Brambilla and Jean Robic, 1947

 

Jeff Groman's
BSA Brambilla #349 as raced by Piet Van Kempen