There are records available.
For the life of me I can not remember the gentleman/company name you will need to contact. (Richard something) I never followed through on information for my Scotts. The records are in England as I remember.
I will email this link to a friend that I know has this information and posts here occassionally.
Here is cut pasted (and edited) version of a letter sent on a friends gun.
Specifications of Premier, Serial # 1XXXXX
Manufactured c.1920
1 of 3 purchased via Holland & Holland
12 Gauge 2-¾ inch chambers
Double trigger, semi-pistol grip English walnut stock, splinter forearm
Butt checkered inside of heavily engraved skeleton butt plate
Holland & Holland style locks, gold plated internals
Scott’s improved square cross top bolt with double under bolts
Side clips
Birmingham nitro proofed for 1¼-ounce loads
30 inch barrels with flat file cut rib
Barrel wall thickness @ 9” from breech is 0.059
Right and left tubes taper from breech to chokes 0.734 to 0.730
Choke Right: 0.730-0.717=0.013 choke (¼)
Choke Left: 0.730-0.691=0.039 choke (full)
Barrel address reads: “W. & C. Scott & Son Makers The Premier
Shaftesbury Avenue London”
Lock-up is tight
Barrels are on face
Locks are in good shape
Ejectors function perfectly
Stock drop at heal 2 ¼, comb 1-3/8
Stock length at heel 14-3/16, center 14, toe 14-5/8
No cast apparent
Gun came cased with all accessories, i.e., snap caps, chamber brush, nickel -plated oil bottle, pull-through brush, ebony cleaning rod, reloading tools, sling, spare firing pins in an ivory bottle, etc. Snap caps, oil bottle, and other accoutrements are labeled “Holland & Holland”.