Richter Stone Union Building Blocks Complete Set No. 6 in Original Box with Booklet flag cards This one portrays the phases

This one portrays the phases of Venus as observed between 1833 and 1836 by astronomists Wilhelm Wolff Beer (Prussian) and Johann Heinrich Mädler (German)

with wonderfully detailed trees

Spokeshaves--which apparently date to prehistoric times

which I find super beautiful

a pencil written message from a S

Richter Stone Union Building Blocks Complete Set No. 6 in Original Box with Booklet flag cards This one portrays the phasesI've long been admiring sets of stone blocks like this for years, but never have I come across a complete set, in excellent condition, in the original. box with slide top lid, and with the original design booklet showing examples of many structures one might build with them, and an extra booklet (from another set) to boot! This Union Building Blocks No. 6 set was produced by Richter & Cie Rudolstadt, Germany c. 1900 and weighs in at just over 7