5.

25 cm x 25 cm

good condition

traces of use and age :  some paint loss, some rust

1  piece

6.

good condition

1 piece

9.

diameter ca 20 cm

good condition

3 pieces

10.

20 cm x 20 cm

good condition

small traces of use and age, some paint loss

5  pieces

11.

25 cm x 25 cm

one bakelite ball repainted, difficult to see

the second one dented

traces of use and age, some paint loss

2  pieces

13.

1  piece

 scientific patinated metal 1950s molecular atom models/ structures

used for study in a school in Prague in the early  1950s

black/ red & white molecules with silver/ yellow metal stems

atoms appears to be bakelite or some type of eary hard plastic

very decorative items