Vtg Schaeffer green marble desk set 2 fountain pens 14K gold nibs midcentury

Vintage Schaeffer mid-century desk set with 2 14K gold nib fountain pens Pens appear to be in good condition although I have not been able to open them. They are 17 cm long. The last photo shows damage to the rim of one of the pen holders. The base measures 26 x 14 cm. The two front corners of the marble base are paler, suggesting they were hit yet all the stone is in place. Finally, there is a small chip as shown on photo 8.