dukedford wrote:

I worked for Royal Typewriters from 1960 and still have an age guide let me know the serial number and i can tell you the year of manufacture
 

You should talk to Ted at the Typewriter Database. I think he already has numbers for most Royals, but if you can show him your source maybe he can verify the sources he already has. The whole goal of the database is to compile all of the known serial data for typewriters in one place.

Sure looks like a Model 10.  Here is a link to the Royal Serial Number database as well as a link to The Classic Typewriter page where you can find the owners manual for the Model 10 as well as service manuals at the bottom of the page. 
http://typewriterdatabase.com/royal.72.typewriter-serial-number-database
Royal Typewriter Serial Number Database
 
http://site.xavier.edu/polt/typewriters/tw-manuals.html
The Classic Typewriter Page


Also very helpful is Jay Respler who moderates a typewriter blog in Yahoo Groups.  You would have to contact him to get an invite to the group. 

https://groups.yahoo.com/neo/groups/TYPEWRITERS
Typewriter Group (Restricted Group)

• Jay Respler

Advanced Business Machines Co.
230 Randolph Road 07728-1535
Freehold, New Jersey
732-431-1464
JRespler@superlink.net

You may also want to contact Paul Lundy at The Bremerton Office Machine Comapny as they are still actively repairing typewriters and can supply some parts. 

http://typespec.com/draw-bands/
Bremerton Office Machine Company
245 4th Street
Suite 503
Bremerton, WA 98337
(360) 373-6330
paul@typespec.com
Paul Lundy

If you ever need to have the platen or rollers redone, there is still a company out there doing that.

http://www.jjshort.com/index.php
http://www.jjshort.com/typewriter-platen-repair.php
J.J. Short Company – Recovers Typewriter Platens
U.S. Postal Mailing Address:
J.J. Short Associates, Inc.
P.O. Box 183
Fairport, New York, USA 14450-0183Phone: 1-800-641-3511 or 315-986-3511
Fax: 315-986-2827
Email: pjshort@jjshort.com

Hope this helps