Hyllinge Klein Blue Glass Table Lamp by Gert Nyström, 1960s. Not signed.
Great vintage condition, no chips, cracks or other damage to the glass, the brown-yellow you see under the transparent top/cap is glue, not to bothersome ;)
Height lamp base including socket 36 cm / 14.2"
Height for lamp base + shade: 52cm / 20.5"
Diameter of lamp base, where widest: 14 cm / 5.5"