Yes, I'd search for a hammer first. The correct hammer will not be nickeled, the factory did not nickel plate hammers and triggers. It should be color case hardened.
And there are two different style N frame hammers, you need the 2nd style pre war hammer.
You will likely find its stocks more comfortable for shooting than originals and may be why your dad used them. Original stocks looked like this:
Try these sources:
"Aonepawninc"
http://stores.ebay.com/aonepawninc
has a bunch of S&W parts for sale. I just ordered a complete hammer for my pre model 30 from them. They are very customer oriented and have very reasonable prices. 1/10/16
Dave Bennett: Parts and guns from 1900 up to 1970's.
e-Mail:
[email protected]
Web Site:
www.22ammobox.com
David Clements - Clements Custom Guns
PH: 276-238-8761
2766 Mt. Zion Rd.
Woodlawn, VA 24381
[email protected]
Clements Custom Guns
Jack First: Large selection of Pre- and Post-WWII parts. Sells working
parts to FFL dealers only.
Phone: 605-343-9544
Gun Parts Corp: Successor to Numrich Arms; many guns parts.
226 Williams Lane, West Hurley, NY 12491
Phone: 845-679-2417
e-Mail:
[email protected]
Web Site:
Firearm Parts & Accessories | Military Surplus | Numrich Gun Parts
Jim Horvath: Many parts for all S&W's (large and small) from 1860 up;
can reproduce parts.
e-Mail:
[email protected]
Jeff Lee: Lee's Gun Parts (an extensive supply of gun parts, including S&W)Mike who works for Lee has 45 M25 barrels.
(Open to the public on Tuesdays, Wednesdays and Thursdays).
3401 W. Pioneer, Suite 2, Irving, TX 75061
Phone: 972-790-0773
Parallels H-Sphere
Jan Matlega: Parts for Pre-WWII S&W hand-ejectors.
Mail Address: 528 Eddy Glover
New Britain, CT 06053
Phone: 860-229-6872
Poppert's Gun Parts:
http://www.poppertsgunparts.com/
P.O. Box 413
Glenside, PA 19038
Tel: 215-887-2391 Fax: 215-887-5816
Email:
[email protected]
Charlie Pate: Provides screws (original & reproduction) for S&W Tip-ups and Top-breaks; author of books and articles on S&W guns.
Phone: 703-533-8057
e-Mail:
[email protected]
Phil Saccacio: Phone: 540-456-6405
e-Mail:
[email protected]
Dave Szilagy: Manufactures parts for older S&W's.
Mail Address: 3107 Electric, Lincoln Park, MI 48146
e-Mail:
[email protected]
Mike Veilleux: Guns and Gun Parts
All Parts inc. for Pre- and Post-WWII S&W's.
Phone: 413-732-9938
e-Mail:
[email protected]
Web Site:
www.gunsnparts.com
Liberty Tree Collectors Phone:207-285-3111
139 Main Street, Corinth, ME 04427
Email:
[email protected]
Liberty tree collectors has original, CCH lanyard rings (but without the retaining pin) for $25.
S&W Parts; antique and new
[email protected]
Ph: 352 394-7412