Impossible to answer without a serial number.
50-100 USD
4 words brah IDK YOLO You Only Live OHHHHHHHHHHHHHHHHHHHHHH
50 or so in poor condition. Current retail values for an excellent example is closer to $165 +/- $25 depending upon location.
The first model 732 guardsman was made from 1959-1973.the second model was made from 1974-1986.
There is no Model 732 in the S&W line that I am aware of.This is correct since the 732 is a Harrington & Richardson (H&R) revolver. The confusion probably comes from this model's chambering for the .32 S&W round which isn't branding but just a designation of what cartridge it uses. "AL" serial probably means early 70's and the value depends alot on the condition, but probably not much more than 200-300 bucks for great condition.
Blue Book of Gun Values
No serial number provided.
Best left to a gunsmith
732 + 1 = 733 732 - 1 = 731 732 x 1 = 732 732 ÷ 1 = 732
1971
Model number 732 does not exist.