Fischertechnik / Fischer Technik Construction 50 & 50V sets Boxed

Two vintage 1970s set 50 & 50V in good condition. A few pieces have discoloured. Please see photos.

Both have their blister covers and solid plastic trays. The 50v blister has yellowed. Looks to be complete but may be missing a few small parts or have extras.

Buyers outside UK, I’ve guessed the postage cost but will update once weighed.