The different capacities

 
A
B
C
                
Year(s)
Small model
Year(s)
Medium model
Year(s))
Large model
               
T1822
3x0x6
One digit multiplier
T1850
8x0x16
One digit multiplier

T1865
to
P3

10x11x20
               
T1820
4x0x8
One digit multiplier
T1850
T1852
8x0x16
P4
11x11x20
               
T1850
5x0x10
One digit multiplier
T1860
T1865
to
P3
8x9x16
1855
15x16x30
Piano Arithmometer
Great Exhibition
               
T1852
T1865
5x0x10
P4
9x9x16
-
-
               
T1852
T1856
6x0x10
-
-
-
-
     
T1860
T1865
to
P3
6x7x12
-
-
-
-
     
-
-
-
-
P4
7x7x12
-
-
-
-

 

www.arithmometre.org
2013