Redington Counting Machine (ca 1910)
F.B.Refington Co., Chicago, USA
dimensions............8,5 x 5,5 x6,5 cm
weight..................530 g
material................iron
digits....................5

Inside you can read:

To set back: if figure 9 shows on any wheel through sight opening, move wheel forward beginning with left hend wheel move each wheel forward in turn to figure nine and pull level

See next picture an inside view