There are 2 Jason Halper trading cards tracked on HobbyCardIndex, spanning Baseball. The most valuable is the Jason Halper #373 at $1.49 raw.

Source: HobbyCardIndex · Updated daily · https://hobbycardindex.com/players/jason-halper

Jason Halper Cards

Name: Jason Halper Card Price Index — Historical Data
Creator: HobbyCardIndex
License: https://hobbycardindex.com/legal/terms

2 cards · Baseball

All Jason Halper Cards