vintage and contemporary postcards and stamps from around the world


22 October 2023

renewable energy

 

geothermal energy

some science for Sunday Stamps

4 comments:

Mail Adventures said...

I remember well that stamp. It belongs to a series of renewable energy. At that time 0,78€ was the "rest of the world" rate, and now 0,78€ is the rate for a stamp within Spain.

I found two stamps for today's theme.

Joy said...

Good one. I never thought of renewable energy when pondering the theme and went with chemistry here

viridian said...

I was out of town last week and couldn't participate. Here is today's entry:
https://viridianpostcard.blogspot.com/2023/10/sunday-stamps-science.html

marina said...

That's a cool stamp! I had fun looking for science stamps and learning a little bit about science people 😜