932 stamped on coil

Hey there. The pivot shoe looks like the 15-180. This works with Series 190 Coil Balance springs sold separately. A stamp of '932' would suggest you need the S190-940 9 pound spring; but if the sash weighs 14.5 pounds exactly that would seem to heavy. Double-check both the stamp and the sash weight, since this doesn't add up. If the sash in fact weighs 14.5 pounds, you'd be better off with the S190-740 7 pound spring, one for each side of the sash. This will give you 14 pounds of support overall, close enough to the exact sash weight. 

For a new cover, see the 15-186 and 15-181 drum.

You are welcome. Do let us know if you have further questions!