Does anyone know what this is or what it could be used for? I found it in a garage at an estate sale. Any information will be greatly appreciated! The cone sits on the pin.Linda Does anyone know what this might be called or what it is used for. I found in a garage at an estate sale. D

Vintage Metal Lawn Blade Balancer 2-803-964 LMP-KCMO https://www.ebay.com/itm/134735362438 https://www.youtube.com/watch?v=UBKmzeS96yk&ab_channel=Jeff%27sLittleEngineService