Strange face on a saw hammer.

[Sawman]

Got these today after a long wait for the price to come down.

The question is why does one of them have a ridge on it.

It is on both faces and it appears to been made that way not someone messing about its just to well done. Any ideas.

[King Karri Tree]

It looks like a rock hammer??

Only a guess though.

[Gavin Longrain]

A sawsmith showed me similar hammer which he called a 'peck' hammer'. He used this to hit a hollowed area to raise it i.e. he did not have to turn the saw over. It did not quite make sense to me, but I saw him use it and it worked. You could try it on scrap metal and find out.

[Jim_Thode]

This is what John Starling wrote about the funny faced hammer:
The hammer on the far right, I found after a lengthy discussion with other saw filers, This hammer is called a hatchet head. It was used in tensioning Black saws and Sash gangs. Black saws are saw plate that have just been forged and they need to be broke down and tensioned, with this hammer. Then they are ground after, to remove any marks and inclusions in the surface of the saw plate. They are also used to straighten chipper and planer knives, when first made and the plate is then ground flat.

[Sawman]

Thanks for that Jim only just picked up your reply. Full set then.