What is it.... the game! Post unknown objects to ID... and to stump others!

Reminds me of a saw part. back of blade runs in groove and between the two dogs up front. Yep found a pic of a reciprocating meat saw. The link is a better match but the photo gives you some idea.

https://www.webstaurantstore.com/efa-110888111-electric-reciprocating-saw-115v/917110888111.html?ma_campaign_id=506171831&ma_adgroup_id=1271037091423850&utm_source=bing&utm_medium=cpc&utm_campaign=Equipment%20%7C%20Shopping%20MP%20%7C%20Cost%20Per%20Sale%20%7C%20Non%20Purchaser&utm_term=4583039403496920&utm_content=All%20Equipment%20Products