Rainbow Colored Vintage Wooden Abacus with Handle Menu Denmark Easily strung on a cord

Easily strung on a cord to wear around your neck

which seems like it could have been inspired by the work of Paul Klee (see Park bei Lu 1938

I happened to give these old clay ones (plus one large one made of wood)  a close look at a recent flea market

I am completely enchanted by its intricate nest of forms

Rainbow Colored Vintage Wooden Abacus with Handle Menu Denmark Easily strung on a cordI love a nice abacus, and think this one, with its rainbow colored beads, is especially lovely and fairly unusual in having a handle, making it easy to calculate on the go! I have found a few other handled examples with a similar form, c. 1940s, which seems about right for this one. Beyond its calculating function, I find abacus' rewardingly useful for tracking of all sorts of things (i. e. move a bead to the left every time you make it to the gym!)