Asahi, Pentax smc-M: 1.7/50mm + 2/50mm | Prime lens

I am selling the very extensive photography collection of my late father. He was a passionate hobby photographer for 65 years and in recent years also experimented with alternative lenses on digital cameras. He would disassemble the lenses if necessary for cleaning or repair. I am not a photography expert myself, so I describe the lot as thoroughly as possible, including as many detailed photos as possible.
READ the information below and carefully examine the attached photos to avoid any misunderstandings.

This concerns:

50 mm f/1.7: Fast aperture for excellent performance in low light and beautiful background blur (bokeh).
50mm f/2: Solid light-gathering capability and compact lens, ideal for sharp images with subtle background blur.
Diaphragm in focus, very smooth.

Only a small amount of dust is visible on the 1.7 lens, but the other lens shows some wires (mold?) that will need cleaning. This seems to be the case. This can only be seen with the backlight photos I always include.
Both meet with the original at the top and bottom.

Combined shipping of lots is possible, but only if they are won in the same auction. This is to save on shipping costs!