Old (like 1950s?) incubator

[newlyweds]

Here's a similar one someone posted about: https://www.backyardchickens.com/forum/viewtopic.php?id=211843&p=1

Hope this helps.

 

[EastinChickens]

The light bulb is probably another heat source. When I was making home-made bators I always used a lightbulb as the heat source.

 

[call ducks]

Quote:
yup found that one, these things are bult to stand the test of time