I'm sure Thump already knows this by heart....

[Big Muddy]

.
I accidentally ran across this cast iron site, and thought it would be interesting to some of you folks:

http://www.castironcollector.com/numbers.php

[Thumper]

Yeppers ... I'm a registered member. :thumbsup

[johnboy]

Just had a look. That's a great site, so thanks!