Philiform, made by Philips from 1969 until 1972, was a construction toy similar to Lego. Many sets made by Philiform involve intricate construction and mechanisms that predate Lego's Technic line by several years.
Despite sharing the same construction premise, Philiform and Lego bricks are not compatible with each other.
What's it worth? Take a look at this Philiform price guide: sold listings for a value indication.