My Aunt Dee and Uncle made this set back in the 1970's.  It is the Atlantic Mold Nativity Set that is done is a brown theme.
The Manger is wood and has a light.  

 There are 21   pieces:
1.  Baby Jesus
2.  Mary
3.  Joseph w/ Cane Hook
4. Wise Man
5. Wise Man
6. Wise Man
7. Standing Camel
8. Fawn Deer
9.  Little Fawn Deer
10. Standing Sheep
11.  Laying Horse
12.  Angel
13. Laying Cow
14.  Shephard Boy
15.  Villager in Distress
16.  Villager with Horn
17.  Village Farmer
18.  Goat
19. Laying Camel
20. Fawn Deer
21.  Fawn Deer 
21. Wood Manger
Shipping weight is 13#
All are without breaks or cracks.  The nice part is if you need to touch up, a dab of brown acrylic paint will do it.  That is what my Aunt did.