Source: ATF P 5300.11 · Curios or Relics List · Jan 1972 – Apr 20253,573 entries · 4 sections
The C&R RegisterA finding aid to the ATF Curios or Relics List, for Type 03 collectors
C&R · III · 226

Mauser naval line-throwing device, WWI

Section III: removed from the NFA, curio or relic under the GCA

Official wording

ATF P 5300.11 · APRIL 2025 EDITION · SECTION III · VERBATIM · PDF P. 43 ↗

Mauser Werke-Koln/Ehrenfield experimental WWI era 8 x 57mm caliber blank Naval line throwing device, serial number 687.

What this entry requires

  • ATF REQUIRESYour serial number is one ATF listsATF: “serial number 687”
  • INFOATF states no date; production was about 1914–1918.

Editorial facts · Our research

Country
GermanyBasis: no citation
Manufacturer
Mauser-Werke, Köln-EhrenfeldBasis: outside reference ²
Type
OtherBasis: outside reference ³
Action
BoltBasis: outside reference ¹
Caliber
8×57mm blankBasis: the ATF wording
Made
Listed serials only · c. 1914–1918production; ATF states no dateBasis: estimate ⁴
Service
Military

Source

Official wording
ATF P 5300.11, April 2025 edition · Section III · PDF p. 43 ↗ · ATF original ↗
Entries
2 lines
Verbatim check
Checked against the PDF text before every release
Editorial facts
Confidence: Medium · Last revised 18 October 2026 (Evidence pass) · How we rate confidence
References
  1. 1. forgottenweapons.com ↗, action
  2. 2. forgottenweapons.com ↗, maker: Mauser factory conversion; a quoted Mauser card names Mauser Waffenfabrik, Köln-Ehrf.
  3. 3. auctions.morphyauctions.com ↗, type: Morphy lot 668 (S/N 687): 'Experimental WWI German naval line throwing carbine built on Mauser Gew98 rifle', reworked at Mauser Werke-Köln/Ehrenfeld — a line-throwing device, recorded as Other
  4. 4. auctions.morphyauctions.com ↗, years (estimate: derived from related facts): the S/N 687 lot is described as a 'very rare and unique WWI Mauser single shot line throwing gun'; WWI limits the dates to 1914–1918, no production date stated
Fact tags
  • ATF the ATF wording states it.
  • REF ¹ an outside reference supports it; the number points to the list of references.
  • ESTIMATE an approximate or indirect reading, for example the production range of the base model.
  • NO CITATION we haven’t attached a reference for this fact; it’s our editorial reading, not ATF’s.
Source checked
20 October 2026: ATF’s page still lists the April 2025 edition
Corrections
None

Historical context

NO VERIFIED IMAGE AVAILABLEWe show only freely licensed images verified to depict this model. None has been found yet.