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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^AP	-> 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	Re-inforced 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		1910-1923	Eibar	Replaced no 1 1910
9		1910-1923	Eibar	Replaced no 2 1910
10		1910-1923	Eibar	Replaced no 4 1910
11		1923-1929	Eibar	Final and single black powder proof of double muzzleloading shotguns
12		1923-1929	Eibar	Final and single black powder proof of single barrel smothbored breechloading guns.
13		1923-1929	Eibar	Final black powder proof for double barrel breech loading rifles.
14		1923-1929	Eibar	Final black powder proof for single barrel breech loading rifles.
15		1923-1929	Eibar	Re-inforced voluntary proof, requested by proof applicant.
16		1923-1929	Eibar	Final proof of military style rifles.
17		1923-1929	Eibar	Single and final proof of non self loading rifles
18		1923-1929	Eibar	Single and final proof of self loading pistols and revolvers
19		1929-1931	Eibar	Mark used by Eibar proof house
20		1929-1931	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		1929-1931	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		1929-1931	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		1929-1931	Eibar	Single and final black powder proof of pistols, self loaders excluded, with rifled barrels. Proof pressure 30% excess load.
27		1929-1931	Eibar	Final proof for revolver. One round for each chamber, with proof pressure 30% excess load.
28		1929-1931	Eibar	Final proof for pistols. With proof pressure 30% excess load.
29		1929-1931	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		1929-1931	Eibar	Smokeless proof for shotguns barrels with proof pressure of 12.090 psi
31		1929->	Eibar	Re-inforced 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		1931-1935	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:

16-03-001-95

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)

Last updated: 2016-11-02