Vintage bookcase from the 60s

Bookcase, dark oak colored storage unit. Vintage piece from the 60s. Colored glass sliding panels: sky blue, terracotta, yellow and duck green. You can reverse the panels from left to right but not from bottom to top because the bottom panels are 36 cm and the top ones are 33 cm. Very functional furniture and perfectly elegant in its sobriety. Good condition. Note some traces of use (see photo). Dimensions: height 83 cm width 94 cm depth 30 cm usable interior 26 cm height of the bottom level 36 cm height of the top level 33 cm.