You did OK for $300 if it's in shooting condition. You shouldn't have any problem in picking up at least a pair of replica grips if you do some searching on the internet. In 1937 S&W made around 25,000 1917s for Brazil, serial range is reportedly 181983-207043. In 1946, there was a second group of Brazilian 1917s, SN 166,000 to 175,150 and 207,196 to 209,878.