Saw ID - help needed.

[COLOR=rgba(0, 0, 0, 0.701961)]Hello folks, hoping some one can ID the use/type of saw this is
I think it may be a butchers saw.
blade is 12" long
8tpi if you count two peaks per tooth
weight 660gm - seems heavy to me.

pictures -

[/COLOR][COLOR=rgba(0, 0, 0, 0.701961)]
[/COLOR]
[COLOR=rgba(0, 0, 0, 0.701961)][/COLOR]
[COLOR=rgba(0, 0, 0, 0.701961)]
[/COLOR]
[COLOR=rgba(0, 0, 0, 0.701961)][/COLOR]