"shoebox" Comptometers - Valuations

ATTN! All valuations are approximate and this website accepts NO responsibility for either the values expressed NOR any actions undertaken by viewers based thereon.

Additionally, valuations shown here were current as of mid-2000 and have not been changed to reflect a general reduction in eBay auction prices since that time.



From 1886 thru 1933, Felt & Tarrant created 9 basic "shoebox" Comptometers.
Many were still in daily use as late as the 1970s..
- - -
General Adjustments
Each model carries a base value that can/should be adjusted for such factors as listed below. Further adjustments are based on the particular model as listed.

In general, add for...
Case surface exceptionally clean (+15%)
Sterling (British money) keyboard (+15%)
Feet-inches, 8ths, etc keyboard (+20%)
12-column machine (+10%)
Machine works completely (passes tests) (+30%)
Original metal cover (+$5-$25)
Ancillary documents (+$5-$500)

In general, deduct for...
Obvious severe case damage (-40%)
Minor scratches, some light rust or corrosion (-10%)
Major scratches, rust or corrosion (-30%)
Rust in mechanism (-25%)
Missing tiny corner case screws (-5% ea.)
Missing decimal indicator (-5%)
*Missing patent plate (-10%)
*Missing one keytop (-15%)
*Missing more than 1 keytop (-5% ea.)
*Bent keystems (-5% ea.)
*Bent clearing handle (-10%)

*depends on availability of part and replacement cost

Estimated production figures based solely on range of known serial numbers

Wood-cased Model
(Wooden case)
(1886 - 1903) Estimated production: 6250
Base approx value: $2000 - $3500
Add for...
Exceptional condition (+40%)
Serial number under 1000 (+30%)
Serial number under 100 (+??%)
Deduct for...
ANY missing components (-20%)
Missing screws, etc (-10%)
Very poor case condition (-15%)
A-Model
(Model-A)
Base approx value: $750 - $1500
(Jan 1904 - Sep 1906) Estimated production: 3500
Add for...
Original frosted glass register cover (+60%)
Deduct for...
Missing crystal glass register cover (-20%)
B-Model
(Model-B)
(Sep 1906 - May 1909) Estimated production: 5900
Base approx value: $350 - $700

C-Model
(Model-C)
(May 1909 - May 1913) Estimated production: 12100
Base approx value: $150 - $300

D-Model
(Model-D)
(May 1915 - May 191?) Estimated production: 153
Exactly like F-model except No Controlled Key
(only one mcahine known to have survived)
Base approx value: $??? - $?????

E-Model
(Model-E)
(Mar 1913 - May 1915) Estimated production: 7600
(Not a reliable count due to conversions, etc)
Base approx value: $500 - $1000
Deduct for...
Red 'Controlled Key' (-10%)
Missing 'Controlled Key' (-20%)
Non-1913 patent plate (-15%)
F-Model
(Model-F)
(May 1915 - Mar 1920) Estimated production: 42300
Base approx value: $75 - $150
Deduct for...
Missing 'Controlled Key' (-15%)
G-Model*
(Model-G)
(about 1914) Estimated production: 1 (prototype)
Value: unknowable

*curator's opinion
H-Model
(Model-H)
(Mar 1920 - Feb 1926) Estimated production: 48500
Base approx value: $60 - $120
Deduct for...
Missing 'Controlled Key' (-20%)
J-Model
(Model-J)
(Feb 1926 - ??? 195?) Estimated production: 85900
Base approx value: $50 - $100
Deduct for...
Missing 'Controlled Key' (-20%)
'oozing' keytops (-40%)
J-Model-SuperTotalizer
(Model-ST)
(??? - 1933 - ???- 19??) Estimated production: ???
(Starting date based on relevant patent issue)
(Mixed numbering with J-model precludes any estimated production count)
Base approx value: $300 - $600
Deduct for...
Missing 'Controlled Key' (-5%)
'oozing' keytops (-15%)



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