1. BG STUDENT PLANETARIUM-

2. BG-1 SOLAR SYSTEM MODEL

4. BG-1B SOLAR SYSTEM MODEL

5. BG-2 SOLAR & LUNAR ECLIPES

6. BG-3 DAY AND NIGHT

7. BG-4 THE SOLAR SYSTEM

8. BG-5 THE SOLAR SYSTEM

9. BG-6 STANDARD TIME INDICATOR

10. BG-7 SOLAR & LUNAR ECLIPSES

11. BG-8 UNIVERSAL SUN DIAL

12. BG-9 PHASES OF THE MOON

13. BG-8 APPARATUS DAY & NIGHT

14. BG-10 SEASONS APP. SET OF 4 GLOBES

15. BG-11 APPARENT PATH OF THE SUN

16. BG-12 APPARATUS GEOGRAPHICAL MERIDIAN OF A PLACE

17. BG-13 SEXTANT MODEL

18. BG-14 STUDENTS PLANETARIUM

19. BG-14 THEODOLITE MODEL