Spanish Proofmarks
Spanish proof might go as far back as to 16th century. The first proof houses appeared in 1844 in Eibar, but the proof then was voluntary basis. As a result of the Brussel convention 1914 Spain entered a compulsory proof 1923.
No

Proof Mark

Valid

Proof House

Type of Proof

1


> 1910

Eibar

Provisional black powder proof for barrels.

2


> 1910

Eibar

Temporary black powder proof for barrels

3


> 1923

Eibar

Breech loading under lever shotgun. Final proof together with 1 and 2

4

2^{A}P

> 1910

Eibar

Final proof of breech loading shotguns with lever underneath the forend. Guns must have 1 and 2 as well.

5


> 1923

Eibar

Final black powder proof of breech loading shotguns with more than two locking lugs.
Proof pressure is 10.667 psi.

6


> 1923

Eibar

Final smokeless proof for breech loading shotguns.
Proof pressure is 12.089 psi. Before proof the gun must have passed black powder proof and have stamp 1,2,3 and 5.

7


> 1923

Eibar

Reinforced smokeless proof for breech loading shotguns.
Proof pressure is 12.801 psi. Before proof the gun must have passed black powder proof and have stamp 1,2,3 and 5.

8


19101923

Eibar

Replaced no 1 1910

9


19101923

Eibar

Replaced no 2 1910

10


19101923

Eibar

Replaced no 4 1910

11


19231929

Eibar

Final and single black powder proof of double muzzleloading shotguns

12


19231929

Eibar

Final and single black powder proof of single barrel smothbored breechloading guns.

13


19231929

Eibar

Final black powder proof for double barrel breech loading rifles.

14


19231929

Eibar

Final black powder proof for single barrel breech loading rifles.

15


19231929

Eibar

Reinforced voluntary proof, requested by proof applicant.

16


19231929

Eibar

Final proof of military style rifles.

17


19231929

Eibar

Single and final proof of non self loading rifles

18


19231929

Eibar

Single and final proof of self loading pistols and revolvers

19


19291931

Eibar

Mark used by Eibar proof house

20


19291931

Barcelona

Mark used by branch house in Barcelona.

21


1929>

Eibar

Final black powder proof for single and double barrel muzzle loading shotguns. Minimum proof pressure is 8534 psi.

22


1929>

Eibar

Temporary or provisional black powder proof for single and double barrel breech loading and selfloading shotguns. Minimum proof pressure is 12.090 psi.

23


19291931

Eibar

Temporary or provisional black powder proof for single and double barrel breech loading and selfloading shotguns. Minimum proof pressure is 8818 psi.
Temporary or provisional smokeless powder proof for single and double barrel breech loading and selfloading shotguns. Minimum proof pressure is 12.090 psi.
Guns is allowed to have a variation of .016” in bore diameter.
The mark shall be completed with gauge in mm, chamber length in mm and barrel weight.

24


19291931

Eibar

Final proof of rifled long guns with a 30% excess pressure.

25


1929>

Eibar

Final proof of long and short barreled saloon or Flobert guns.

26


19291931

Eibar

Single and final black powder proof of pistols, self loaders excluded, with rifled barrels. Proof pressure 30% excess load.

27


19291931

Eibar

Final proof for revolver. One round for each chamber, with proof pressure 30% excess load.

28


19291931

Eibar

Final proof for pistols. With proof pressure 30% excess load.

29


19291931

Eibar

Special manufacturers mark meaning bore and chamber dimensions meet the established norm in proof. Guns for export and chambered for cartridges that are not standard in Spain lacks this mark.

30


19291931

Eibar

Smokeless proof for shotguns barrels with proof pressure of 12.090 psi

31


1929>

Eibar

Reinforced smokeless proof for shotguns barrels with proof pressure of 12.801 psi

32


1929>

Eibar

Guns imported must have valid proof marks accepted by Eibar proof house. If not, the gun must pass a suitable proof and this stamp is put on the barrels and important parts of the gun.
After Spain joined CIP the mark means: Proof of foreign firearms not bearing CIP approved marks.

33


1931>

Eibar

Replace no 19.

34


19311935

Eibar

Barcelona mark, replaced no 20 between 1931 and 1935 when the proof house was active.

35


1931>

Eibar

Replace no 26, for rifled pistols.

36


1931>

Eibar

Replace no 29, for guns made within specified dimensional tolerances.

37


1931>

Eibar

Replace no 30, optional smokeless powder proof of shotgun barrels with a proof pressure of 12.090 psi.


Since 1927 the Eibar proof house used date codes  but the use of this was mandatory as it seems.
Year

Proof

Year

Proof

Year

Proof

A

1927

A1

1955

A2

1981

B

1928

B1

1956

B2

1982

C

1929

C1

1957

C2

1983

CH

1930

CH1


CH2


D

1931

D1

1958

D2

1984

E

1932

E1

1959

E2

1985

F

1933

F1

1960

F2

1986

G

1934

G1

1961

G2

1987

H

1935

H1

1962

H2

1988

I

1936

I1

1963

I2

1989

J

1937

J1

1964

J2

1990

K

1938

K1

1965

K2

1991

L

1939

L1

1966

L2

1992

LL

1940

LL1


LL2


M

1941

M1

1967

M2

1993

N

1942

N1

1968

N2

1994

Ñ

1943

Ñ1

1969

Ñ2

1995

O

1944

O1

1970

O2

1996

P

1945

P1

1971

P2

1997

Q

1946

Q1

1972

Q2

1998

R

1947

R1

1973

R2

1999

S

1948

S1

1974

S2

2000

T

1949

T1

1975

T2

2001

U

1950

U1

1976

U2

2002

V

1951

V1

1977

V2

2003

X

1952

X1

1978

X2

2004

Y

1953

Y1

1979

Y2

2005

Z

1954

Z1

1980

Z2

2006


Since 1995 Spain integrated the manufacturing year in the serial number in the following form:
160300195
16 = Manufacturer in this case AYA 03 = type of weapon 001 = serial number by the manufacturer 95 = 1995, year of manufacturing
Gunmaker Code (also check Spanish TradeMarks)
13 = Lanber 16 = AyA 27 = Armas Garbi 31 = Grulla Armas 35 = Ignacio Ugartechea 40 = Kemen (Thanks Jon S for this) 46 = Pedro Arrizabalaga 57 = Arrieta 60 = Zabala Hermanos IMA = Industrias Marixa Armas
? = Zamacola Hermanos
Type of gun
01 = Carabina (Carbine) 02 = Blanca (Blank firing gun) 03 = Escopeta (Shotgun) 04 = Pistola (Pistol) 05 = Revolver (Revolver) 06 = Rifle (Rifle) 07 = Anestesia (Dart Gun) 08 = Arco (Bow) 09 = Ballesta (Crossbow) 10 = number not assigned 11 = Lanzacabos (Spear Head) 12 = Trabuco (Blunderbuss) 13 = Avancarga (Muzzle Loader) 14 = Mosquetón (Short Carbine) 15 = Subfusil (Submachineguns among other defenitions) 16 = Arcabuz (Harquebus)
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Last updated: 20161102
