Colonial iron artifacts - shaped like small houses?

[Urban Digger]

I found approximately 15 of these iron artifacts at a colonial house site that goes back to the early 1700s. Not sure exactly how old they are, or what they are... They all are about 2.5" tall, .5 inch thick, with a small notch at the bottom. Does anyone have any insight? Thank you in advance!

 

[DCMatt]

All near each other or scattered about?

Was it a stone house?

 

[cudamark]

The spade bottom of a push-in metal fence post.

 

[ANTIQUARIAN]

The spade bottom of a push-in metal fence post.

I automatically thought sickle bar tooth or plow hardware.
I learn something new here everyday.

Dave