Finishes & Markings

Contents

Section	Topic
10	Finishes & Markings
· 10.1	Period-correct finish
· 10.2	The finishing toolbox (lab-practical)
· 10.3	Surface prep
· 10.4	Grips
· 10.5	Markings — period progression
· 10.6	The markings line you must not cross
· 10.7	References (Vol 10)

Finish is where a C96 build (Path A refurbish or Path C fabrication) reads as right or wrong, and where the markings question carries real legal weight. This volume covers the period-correct processes, the lab-practical alternatives, and the bright line on reproducing factory marks.

10.1 Period-correct finish

Original C96s were rust blued — the slow, oxide-conversion bluing characteristic of the era — with small parts strawed (fire blued) for the gold/straw color (e.g. the trigger), and the chamber often left polished bright. Grips are oiled/lacquered walnut. Later post-war and M30 guns show a glossy bright blue (likened to Colt “charcoal” blue). For a build aiming at period correctness, rust blue on the receiver/barrel + straw on the historically-strawed small parts is the target.

10.2 The finishing toolbox (lab-practical)

Finish	Use	In-lab?
Rust blue	Period-correct receiver/barrel	Yes — needs a humidity/boil setup; confirm
Hot (salt) blue	Faster modern blue; refinish	Yes — dedicated tank; confirm
Straw / fire blue	Small parts (trigger, etc.)	Yes — controlled heat
Parkerizing	Durable matte; not period for a commercial C96	Yes
Cold blue	Touch-up only	Yes
Cerakote	Modern/protective; not period	Yes if spray+oven present
Walnut oil/lacquer	Grips	Yes

Match the finish to the build’s intent: a period restoration wants rust blue + straw; a working shooter can accept hot blue or parkerizing; a display/prop stand-in can use whatever reads right.

10.3 Surface prep

The finish is only as good as the prep: draw-filing/stoning the flats true (the C96’s slab sides show every wave), consistent polish grit, and clean degreasing before bluing. Rust blue in particular is unforgiving of oil contamination.

10.4 Grips

Walnut, single screw through both panels with a heel lug (Vol 2). CNC the blanks (Vol 9) and hand-finish, or fit repro panels. For a 9×19 build wearing a Red-9 look, the carved, red-filled “9” is a laser-engrave-then-fill operation — historically done by units, not the factory (Vol 3 §3.4), so treat it as a representation, not a forgery of issue marks.

10.5 Markings — period progression

For authenticity reference (Vol 5 §5.3): chamber “SYSTEM MAUSER” (earliest) → “WAFFENFABRIK MAUSER OBERNDORF” → Mauser banner; D.R.P.u.A.P. on the M30 frame; era-correct proof and (for Red 9) the Imperial Eagle on the magazine-well front.

10.6 The markings line you must not cross

Do not reproduce Mauser banners, factory serials, or proof/inspection marks on a fabricated or modified gun in any way that could pass it off as a genuine original. That is counterfeiting and fraud, entirely separate from the manufacturing-law question (Vol 11), and it damages the collector record. Specifically:

• Fabricated guns (Path C): if your jurisdiction requires a serial (Vol 11), apply your own distinct serialization to the spec (depth, size) required — not a fake Mauser number. No forged proof marks. No counterfeit banner presented as original.
• Restored guns (Path A): never re-stamp or “improve” original markings (Vol 7 §7.4); preserve them.
• Representational marks (e.g. a banner clearly part of a non-original build, or a Red-9 grip carving on a modern build) are a judgment call — keep them honest and non-deceptive, and follow Vol 11.

Laser engraving (the lab’s 100 W) is the natural tool for legitimate serialization and for representational detail — used within the above limits.

10.7 References (Vol 10)

• Vol 5 (markings progression), Vol 9 (fabrication finish steps), Vol 11 (serialization/marking law).
• Synthesis: ../volume_sources/research_notes.md §4. Full bibliography: Vol 12.