Remember that the model year runs from September of the previous year.

Model	Year	Engine	Rigid	Gbox		Model	Year	Engine	Rigid	Gbox
A,B,C,D	1926	P	P	SL		LF3	1934	EA	Y	T
A,B,C,D,E	1927	V	V	Q		LF4,LH	1934	EA	Y	CP
A,B,C,D,E	1928	W	W	Q		NF3	1934	FA	Y	T
LB,LF	1929	L	L	RP		NF4,NH	1934	FA	Y	CP
A	1929	H	H	S-A		VA3,VF3	1934	GA	Y	T
B,E,F	1929	H	H	Q		VA4,VB,VF4,VG,VH	1934	GA	Y	BA
LB,LF,LG	1930	M	L	RP		4F6	1934	UA	Y	BA
A,E	1930	K	K	S-A		Fleet	1934	FL	FL	BAR
B,F,G	1930	K	K	Q		LF3	1935	HA	Y	T
LB,LF	1931	J	J	RP		LF4,LH	1935	HA	Y	CP
MF	1931	A	J	RP		NF3	1935	JA	Y	T
VF	1931	N	N/K	Q		NF4,NH	1935	JA	Y	CP
VB	1931	N	N/K	S-A		VA3,VF3	1935	KA	Y	T
SB,SF,SG	1931	S	S	BA		VA4,VB,VF4, VG,VH	1935	KA	Y	BA
4F	1931	R	R	BA		4F6	1935	WA	Y	BA
Fleet	1931	FL	FL	BAR		LG,LH	1936	AB	F	CP
LB,LF	1932	E	B/D	RP		NG,NH	1936	BB	F	CP
MA, MB,MF,MH	1932	B	B/D	RP		VB,VG,VH	1936	CB	F	BA
VB,VF,VG,VH	1932	C	C	Q		4F6	1936	XB	Y	BA
SB,SG	1932	D	D	BA		4G	1936	DB	P	BA
4F5	1932	R	D	BA		LG,LH	1937	AC	XF	CP
4F6	1932	T	T	BA		NG,NH	1937	BC	XF	CP
Fleet	1932	FL	FL	BAR		VB,VG,VH	1937	CC	XF	BA
LH	1933	DA	Y	CP		4F	1937	EC	P	CP
NF3	1933	BA	Y	T		4G (eng nos 101-615)	1937	DC	P	BA
NF4,NH	1933	BA	Y	CP		LG,LH	1938	AD	XG	CP
VA3,VF3	1933	CA	Y	T		NG,NH	1938	BD	XG	CP
VA4,VB,VF4,VG,VH	1933	CA	Y	BA		VB,VG,VH	1938	CD	XG	BA
4F6	1933	TA	Y	BA		4G (eng nos 616-650)	1938	DC	P	BA
Fleet	1933	FL	FL	BAR		4G	1938	DD	P	BA

Burman changed their gearboxes in January rather than September, the number of the first gearbox is given in the ‘January >’ column. See section 19 for more information

Model	Year	Engine	Rig	Plun	G’box < Jan	G’box  Jan >
OG, OH	1939	AE	M		HP
NG, NH	1939	BE	XG	BX	CP
VA, VB, VG, VH	1939	CE	XG	BX	BA
4F	1939	EE	P	AX	CP
4G,4H	1939	DE	P	AX	BA
OG,OH	1940	AH	M		HP
NG,NH	1940	BH	XG	BX	CP
VA, VB, VG, VH	1940	CH	XG	BX	BA
4F	1940	EH or EEH	P	AX	BA
4G,4H	1940	DH	P	AX	BA
W/NG Army	1941 to 1945	BH	XG	From BH 625	CP
W/NG Navy		NBH	XG		CP
W/NG R.A.F.		RBH	XG		CP
NG, NH	1946	BK	AP or BP		G6	G6
VG, VH, VB	1946	CK	BP		G7	G7
4G	1946	DH 268 273-6	P		G8	G8
4G	1946	DK	XP	AX	G8	G8
NG, NH	1947	BK	AP or BP		G6	G30 K46
VG, VH, VB	1947	CK	BP		G7	G31 K46
4G	1947	DK	XP		G8	G32 A47
NG, NH	1948	AJ	BP	BX	G30	G41 D48
VG, VH, VB	1948	BJ	BP	BX	G31	G48 D48
KG, KH	1948	PT	DX	CX	G50	G67 D48
4G	1948	CJ	XP	AX	G32	G49 D48
NG, NH	1949	DJ	RF	SF	G75	G92 M48
VG, VH, VB	1949	EJ	RF	SF	G77	G90 K48
VCH	1949	CO	COM	SF	G70	G90
KG, KH	1949	HT	HH	HS	G76	G89 M48
MKI	1949	FJ	GR	GS	G78	G91 A49
NG, NH	1950	KL	AB	AC	G92	G108 M49
VG, VH, VB	1950	MN	AB	AC	G90	G107 M49
VCH	1950	CO	COM or AB	CX	G70 or G80	G90,98 or107
KG, KH	1950	OP	GD	LL	G90	G107 M49
MKI	1950	JJ	TD	CW	G91	G106 M49
NG, NH	1951	RA	WA	SA	G108
VG, VH, VB	1951	RBH	WA	SA	G107
VCH	1951	CO	COM or WA	SA	G107
KG, KH	1951	RC	WB	SB	G107	G108
MKI	1951	RD	WC	SC	G106
NH	1952	TB	OA	SD	G108	GB5
VH, VB	1952	TC	OA	SD	G107	GB6 M51
VHA	1952	TCA	OA	SD	G107	GB6 M51
VCH	1952	TR	OR		G107 or GB6	GB9 or 10
KH	1952	TE	OB	SE	G107	GB6 A52
MKI	1952	TM	OC	SV	G106	GB7
NH	1953	XA	AM	AS	GB5
VH	1953	XC	AM	AS	GB6
VHA	1953	XD	AM	AS	GB6
VCH	1953	XE	MA		GB6 or GB10
VB	1953	VB	AM	AS	GB6
KH	1953	XF	BW	BS	GB6
KHA	1953	XFA	BW	BS	GB6
MKI	1953	XH	EJ	ES	GB7
MKII	1953	XJ	EJ	ES	GB7

Model

Year

Engine

Rigid

Plun

S’arm

G’box

Model

Year

Engine

Plun

S’arm

G’box

LH

1954

PA

KN

GB30

VB

1956

MC

PR

GB40

NH

1954

PB

KS

GB5

KH

1956

MD

PR

GB40

VH

1954

PD

KS

GB6

FH

1956

MLF

PR

GB44

HS

1954

PS

KSS

GB34

MKII

1956

ML

GM

GB7

HT

1954

PT

KT/TF

GB11

LH

1957

BLA

ST

GB33

VB

1954

PE

KW

VS

GB6

NH

1957

AMA

APR

GB39

KH

1954

PH

KS

GB6

HT3

1957

TH

RT

GB47

FH

1954

PJ

KS

GB25

VH

1957

AMB

APR

GB40

MKII

1954

PL

KR

GB7

HS

1957

NH

PRS

GB45

LH

1955

LA

LS

GB30/33

HT5

1957

NJ

RT

GB47

NH

1955

LB

DU

GB5

VB

1957

AMC

APR

GB40

VH

1955

LC

DU

GB6

KH

1957

AMD

APR

GB40

HS

1955

LK

KSS DUS

GB5/6/34

FH

1957

NLF

APR

GB44

HT

1955

LJ

TF

GB11

MKII

1957

NML

GM

GB7

VB

1955

LD

RF

DU

GB6

LH

1958

CBLA

CST

GB33

KH

1955

LE

DU

GB6

NH

1958

CAMA

CAPR

GB39

FH

1955

LF

DU

GB25

HT3

1958

TH

CRT

GB47

MKII

1955

GL

PS

GB7

VH

1958

CAMB

CAPR

GB40

LH

1956

ALA

MT

GB33

HS

1958

CNH

CPRS

GB45

NH

1956

MA

PR

GB39

HT5

1958

CNJ

CRT

GB47

VH

1956

MB

PR

GB40

VB

1958

CAMC

CAPR

GB40

HS

1956

MH

PRS

GB45

FH

1958

CNLF

CAPR

GB44

HT

1956

MJ

RT

GB47

MKII

1958

CNML

CGM

GB7

Dating Certificate

Ariel Works Ltd. recorded every motorcycle as it left the factory in large ledgers called Despatch Record Books. The motorcycles are listed in engine number order, along with a variety of information, which always includes the frame number, to whom it was despatched and the date of despatch.
Usually other information is also recorded such gearbox number, make and/or type of tyres and speedometer, make of carburetter and magneto and the model i.e. VF, VG, VH or VB. There is also a remarks column where options are shown such, as pillion footrests, high-level exhaust system, sidecar gearing, colour of paintwork etc.

We will prepare a certificate listing the entry for your motorcycle and if possible the listing for the frame if it is not the original. Just supply us with the engine and frame number taken from the bike, not the documents, include the registration and gearbox number if you wish and original engine number if known and if different to the present. This certificate is accepted by the UK licensing authorities as proof of date of manufacture but for the retention of the original number you will have to provide additional documentary evidence. If you want the certificate for this purpose you must send a rubbing or CLEAR photograph of the engine and frame numbers. It is in any case of historical interest and who knows that old NH may have originally been despatched to the experimental department! The cost is in the price list as DAT92 and is +VAT where applicable.