Singer Sewing Machines were first manufactured in 1851. The manufacture dating provided here is reproduced from the original Company register numberlog books. Serial numbers for the years 1851 to 1870 are not available.

Serial numbers on Singer sewing machines manufactured prior to 1900 are numbers only. After 1900, the machine serial numbers have a single or two-letter prefix. The tables are divided into three categories.

Factory Locations
by Prefix Letter (single letter)

A - Podolsk, Russia
B - Elizabeth, New Jersey USA
C - Wittenberge, (Prussia)
D - Elizabeth, New Jersey USA
E - Podolsk, Russia
F - Clydebank, Scotland
G - Elizabeth, New Jersey USA
H - Elizabeth, New Jersey USA
J - Clydebank, Scotland
K - Elizabeth, New Jersey USA
L - Elizabeth, New Jersey USA
M - Clydebank, Scotland
N - Elizabeth, New Jersey USA
P - Clydebank, Scotland
R - Clydebank, Scotland
S - Clydebank, Scotland
S*- Podolsk, Russia
(*100 "S" machines made in Podolsk)
T - Podolsk, Russia
V - Clydebank, Scotland
W - Bridgeport, Connecticut USA
X - Clydebank, Scotland
Y - Clydebank, Scotland

Single Letter Serials

Single Letter Prefix
B   D   F   G   H   J   K   L   M   N   P   R   S   V   Y

Double Letter Serials

Double Letter Prefix   AA   AB   AC   AD   AE   AF   AG   AH   AJ   AK   AL   AM   AN   AP   AR   AS and AT   EA   EB   EC   ED   EE   EF   EG   EH   EJ   EK   EL   EM   EN   EP   ER   ES   ET   EV   EW   EX  

Factory Locations
by Prefix Letters (double letter)

AA to AT - Elizabeth, New Jersey USA
BA to BY - Elizabeth, New Jersey USA
CA to CY - Bogota, Colombia
DA to DY - Karachi, Pakistan
EA to EY - Clydebank, Scotland
FA to FY - Clydebank, Scotland
GA to GY - Clydebank, Scotland
HA to HY - Istanbul, Turkey
JA to JE - St. Johns, Newfoundland Canada
KA to KY - Buenos Aires, Argentina
LA to LY - Taytay, Philippines
MA to MY - Monza, Italy
NA to NC - Anderson, South Carolina USA
ND to NY - Taichung, Taiwan
PA to PY - Karlsruhe, Germany
RA to RY - Campinas, Brazil
SA to SN - Bonnieres, France
SP to SY - Lima, Peru
TA to TY - Utsunomiya, Japan
VA to VY - Penrith, NSW Australia
WA to WY - Santiago, Chile
YA to YY - Queretare, Mexico