Union Pacific - back side marked with Adlake S and 552

M&PDuC S Key

St Louis Brownsville & Mexico brass switch key

Union Pacific S key with tapered barel

St Louis, Alton and Chicago Key

Northern Pacific Key - back is marked with an S

Denver and Rio Grande Western key - back marked Adlake

Wakash S Key - Back marked with Slaymaker

Chicago & Great Western

Atchison, Topeka and Santa Fe (Santa Fe) - S Key back marked Adlake

Baltimore & Ohio - Manufactured by Fraim

Steel Burlington & Missouri River S Key

ALGOMA CENTRAL & HUDSON BAY key - back marked with Adlake

Baltimore & Ohio South western Tapered barrel double ring

Steel Burlington Route Key

BN:Burlington Northern BNINC Key

Cincinnati and Lake Erie key - back marked adlake

Cleveland, Cincinnati, Chicago & St. Louis Railway S Key

Chicago & Great Western - back marked S

CHICAGO, MILWAUKEE & ST. PAUL S key

Chicago & North Western

Colorado & Southern key - back marked Adlake

Chicago & Western Indiana

Chicago & Great Western back marked S with mfg mark

Chicago & North Western tapered barrel back marked mfg Ritchie & Boyden, Newark NJ

Chicago & North Western single ring key - Manufactured by Bohannan

Rock Island key - back is marked SCALE

Milwaukee repair track key. Marked RT on back

Milwaukee SD key

Canadian National Railway - back marked R.M.Co and with S

Chicago St Paul & Kansas City S key - tapered barrel

Chicago, St Paul & Omaha back marked ED and with an S

Chicago, St Paul & Omaha - back is marked WD

Erie SD key

Detroit Toledo & Ironton

Duluth Missabe & Iron Range

Elgin Joliet & Eastern

Flint & Pere Marquette key

Des Moines Union Railroad key

Louisville & Nashville

Great Nothern Asking $35

GN:Great Nothern Railroad - Asking $30

Grand Trunk Western

:St. Louis–San Francisco Railway

Illinois Central Railroad

LAKE ERIE & DETROIT RIVER - front marked with a 662 - mfg Fraim

Chicago, Milwaukee, St. Paul and Pacific DCC Key

Rock Island key. Mfg mark, S and A5598 on back

Rock Island key with mfg, S and 11252 stamped on back

BCR key

Chicago Rock Island & Pacific key - marking is unique - back marked Adlake

Chicago & North Western back marked with S and mgf

Chicago, St Paul & Omaha back marked mfg ans S

Rock Island Key back marked w mfg

Chicago, St Paul & Omaha - back marked MC and S with mfg

Des Moines City Railway key

Rock Island Switch Key with Tapered Barrel

Cedar Rapids & Iowa City Switch Key. Back marked with Adlake maker mark

Chicago Saint Paul Minneapolis & Omaha key - Back has Western Division (WD) mark on back

Mfg mark on back and numbers 1118. S on back

Back is marked with mgf and SY

Back is marked ED - has mfg mark and S mark. RR mark is well worn. His single ring

Terminal Railroad Association

Has mfg mark and S mark on back

Western Pacific Key - has mfg mark on back and numbers 1790

Back marked R.M.Co

WP - Western Pacific Ry Key

M & StL key - mfg mark, S and digits 5107 on back

Colorado & Southern Key- mfg mark on back and nbr 2945

Missoury Pacific / MoPac key

CRI$P on one side and CNW on reverse

Monongahela Railway Key

Some damage on the front obscures the I - it appears that the bit matches OI&W

mfg mark on back

Chicago & Eastern Illinois Tapered barrel - Back stamped with number 1140

mfg on reverse

R & B Marked on back

M&StL Key - mfg marked on reverse

Seaboard Air line Ry - Back stamped Fraim

Chicago & Grand Trunk key - Tapered

New York Central - back marked adlake

Stamped Adlake on back

Petaluma & Santa Rosa - back stamped Fraim

Pennsylvana key - Back is marked with a B, mgf and 344

Illinois Central Ket back stamped S, mfg and with nbr

Mgf stamped on back

New York Lake Erie and Western Tapered barrel

Texas & Pacific - reverse marked Adlake and with S

Great Northern Key $40